Jump to content

Statewide opinion polling for the 2016 Democratic Party presidential primaries

From Wikipedia, the free encyclopedia

This map shows which candidate is leading in the most recent opinion polling for each state.
Key:
  Hillary Clinton
20 states
  Bernie Sanders
3 states
  Shared states (statistically tied)
20 states
  No polling data in the three months preceding the state's primary
7 states, 1 district/territory

Note: This map reflects the latest opinion polling results, NOT the final actual result of the primaries/caucuses themselves. A map of the primaries' results is located at File:Democratic Party presidential primaries results, 2016.svg.

This article contains opinion polling by U.S. state for the 2016 Democratic Party presidential primaries. For currency and accuracy, please note the specific dates for each polling as listed below. For the significance of the earliest state votes, the Iowa caucuses and the New Hampshire primary, see United States presidential primary – Iowa and New Hampshire. To know when any given state votes, see the timeline of primaries and caucuses.

Note: A statistical tie occurs when two data points from within a set are within twice the margin of error of each other. When adding polls remember to double the margin of error provided to see the true result.

Statewide polling

[edit]

Delegate count: 53 Pledged, 7 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
77.8%
Bernie Sanders
19.2%
Other
3.0%
Monmouth[1]

Margin of error: ± 5.8%
Sample size: 300

February 25–28,
2016
Hillary Clinton
71%
Bernie Sanders
23%
Others / Undecided
6%
Public Policy Polling[2]

Margin of error: ± 4.4
Sample size: 500

February 14–16,
2016
Hillary Clinton
59%
Bernie Sanders
31%
News-5/Strategy Research[3]

Margin of error: ± 2 percent
Sample size: 3,500

August 11, 2015 Hillary Clinton
78%
Bernie Sanders 10%

Delegate count: 16 Pledged, 4 Unpledged Winner: Bernie Sanders
Caucus date: March 26, 2016

Poll source Date 1st 2nd Other
Caucus results March 29, 2016 Bernie Sanders
79.6%
Hillary Clinton
20.2%
Other
0.2%
Alaska Dispatch News/Ivan Moore Research[4]

Margin of error: ± ~3.8%
Sample size: 651

Published January 23, 2016[4] Bernie Sanders
48%
Hillary Clinton
34%
Martin O'Malley 6%
Undecided 14%

Delegate count: 75 Pledged, 10 Unpledged Winner: Hillary Clinton
Primary date: March 22, 2016

Poll source Date 1st 2nd Other
Official Primary results March 22, 2016 Hillary Clinton
56.3%
Bernie Sanders
41.4%
Others
2.3%
Merrill Poll[5]

Margin of error: ± 5.4%
Sample size: 300

March 7-11, 2016 Hillary Clinton
50%
Bernie Sanders
24%
Others / Undecided
26%
MBQF Consulting and Marson Media[6]

Margin of error: ± 3.6%
Sample size: 739

Published February 29, 2016 Hillary Clinton
56%
Bernie Sanders
22%
Others / Undecided
22%
Behavior Research Center[7]

Margin of error: ± 7.3%
Sample size: 186

October 24 – November 5, 2015 Hillary Clinton
47%
Bernie Sanders
19%
Martin O'Malley 2%
Uncommitted 32%
One America News[8]

Margin of error: ± 4.7%
Sample size: 427

Published August 17, 2015 Hillary Clinton
56%
Bernie Sanders
34%
Joe Biden 6%
Lincoln Chafee 2%
Jim Webb 1%
Martin O'Malley 1%
Public Policy Polling [9]

Margin of error: ± 6%
Sample size: 268

May 1–3, 2015 Hillary Clinton
58%
Bernie Sanders
16%
Lincoln Chafee 5%
Jim Webb 5%
Martin O'Malley 4%
Not sure 12%

Delegate count: 32 Pledged, 5 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
66.1%
Bernie Sanders
30.0%
Others
4.0%
Public Policy Polling[10]

Margin of error: ± 4.3
Sample size: 525

February 14–16, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Talk Business/Hendrix[11]

Margin of error: ± 3.3% Sample size: 451

February 4, 2016 Hillary Clinton
57%
Bernie Sanders
25%
Don't Know 18%
Suffolk University[12]

Margin of error: ± ?
Sample size: 209

September 20–23, 2014 Hillary Clinton
71%
Joe Biden
8%
Andrew Cuomo 5%
Elizabeth Warren 3%
Martin O’Malley 2%
Undecided/Refused 10%
Polling Company/WomenTrend[13]

Margin of error: ± ?
Sample size: ?

August 6–7, 2013 Hillary Clinton
59%
Joe Biden
14%
Others/Undecided 27%

Delegate count: 475 Pledged, 71 Unpledged Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source Date 1st 2nd Other
California Secretary of State Primary results June 7, 2016 Hillary Clinton
53.1%
Bernie Sanders
46.0%
Others
0.9%
CBS News/YouGov[14]

Margin of error: ±5.0%
Sample size: 674

May 31-June 3, 2016 Hillary Clinton
49%
Bernie Sanders
47%
Others / Undecided 4%
American Research Group[15]

Margin of error: ± 5%
Sample size: 400

May 31 –
June 2, 2016
Hillary Clinton
48%
Bernie Sanders
47%
Others / Undecided
5%
NBC/WSJ/Marist[16]

Margin of error: ±4.2%
Sample size: 557

May 29–31, 2016 Hillary Clinton
49%
Bernie Sanders
47%
Others / Undecided 4%
Field[17]

Margin of error: ±4.1%
Sample size: 571

May 26–31, 2016 Hillary Clinton
45%
Bernie Sanders
43%
Others / Undecided 12%
USC Dornsife/Los Angeles Times[18]

Margin of error: ± 2.9%
Sample size: 1,500

May 19–31, 2016 Hillary Clinton
49%
Bernie Sanders
39%
Others / Undecided
13%
SurveyUSA[19]

Margin of error: ±%
Sample size: 803

May 19–22, 2016 Hillary Clinton
57%
Bernie Sanders
39%
Undecided 4%
PPIC[20]

Margin of error: ±5.7%
Sample size: 552

May 13–22, 2016 Hillary Clinton
46%
Bernie Sanders
44%
Undecided 10%
Hoover Institution State Poll[21]

Margin of error: ±3.47%
Sample size: 1,700

May 4–16, 2016 Hillary Clinton
51%
Bernie Sanders
38%
Others / Undecided
11%
Sextant (D)/Capitol Weekly[22]

Margin of error: ±2.3%
Sample size: 1,617

April 28-May 1, 2016 Hillary Clinton
49%
Bernie Sanders
39%
Others / Undecided
12%
SurveyUSA/KABC/SCNG[23]

Margin of error: ± %
Sample size: 826

April 27–30, 2016 Hillary Clinton
57%
Bernie Sanders
38%
Others / Undecided
6%
FOX News[24]

Margin of error: ± 4%
Sample size: 623

April 18–21, 2016 Hillary Clinton
48%
Bernie Sanders
46%
Others / Undecided
6%
CBS News/YouGov[25]

Margin of error: ± 4.5%
Sample size: 1,124

April 13–15, 2016 Hillary Clinton
52%
Bernie Sanders
40%
Others / Undecided
8%
Gravis Marketing[26]

Margin of error: ± 3.4%
Sample size: 846

April 7–10, 2016 Hillary Clinton
47%
Bernie Sanders
41%
Others / Undecided
12%
Field[27]

Margin of error: ± 4.0%
Sample size: 584

March 24 - April 4, 2016 Hillary Clinton
47%
Bernie Sanders
41%
Others / Undecided
12%
SurveyUSA[28]

Margin of error: ± 3.6%
Sample size: 767

March 30 - April 3, 2016 Hillary Clinton
53%
Bernie Sanders
39%
Others / Undecided
8%
USC Dornsife/Los Angeles Times[29]

Margin of error: ± 3.7%
Sample size: 832

March 16–23, 2016 Hillary Clinton
47%
Bernie Sanders
36%
Others / Undecided
17%
PPIC[30]

Margin of error: ± 6.2%
Sample size: 529

March 6–15, 2016 Hillary Clinton
48%
Bernie Sanders
41%
Others / Undecided
11%
Field Poll[31]

Margin of error: ± 5.6%
Sample Size: 329

January 6, 2016 Hillary Clinton
46%
Bernie Sanders
35%
Martin O'Malley 1%
Undecided 18%
Polls in 2015
Poll source Date 1st 2nd Other
Field Poll[32]

Margin of error: ± 5.0%
Sample size: 391

September 17 – October 4, 2015 Hillary Clinton
47%
Bernie Sanders
35%
Martin O'Malley 1%
Jim Webb 1%
Lincoln Chafee 0%
Other 2%
Undecided 14%
Hillary Clinton
40%
Bernie Sanders
31%
Joe Biden 15%
Martin O'Malley 1%
Lincoln Chafee 0%
Jim Webb 1%
Other 2%
Undecided 12%
USC/LA Times[33]

Margin of error: ± 3.6%
Sample size: ?

August 29 – September 8, 2015 Hillary Clinton
42%
Bernie Sanders
26%
Other/NA 16%
Undecided 16%
Hillary Clinton
39%
Bernie Sanders
23%
Joe Biden 11%
Other/NA 11%
Undecided 16%
Field Poll[34]

Margin of error: ± 7.0%
Sample size: 356

April 23 – May 16, 2015 Hillary Clinton
53%
Elizabeth Warren
13%
Joe Biden 6%
Bernie Sanders 5%
Jim Webb 1%
Martin O'Malley 0%
Lincoln Chafee 0%
Undecided/other 22%
Emerson College[35]

Margin of error: ± ?
Sample size: 487

April 2–8, 2015 Hillary Clinton
56%
Elizabeth Warren
11%
Joe Biden 8%
Bernie Sanders 3%
Martin O'Malley 2%
Jim Webb 1%
Andrew Cuomo 0%
Other 2%
Undecided 17%
Field Poll [36]

Margin of error: ± 5%
Sample size: 425

January 26 – February 16, 2015 Hillary Clinton
59%
Elizabeth Warren
17%
Joe Biden 9%
Bernie Sanders 6%
Jim Webb 2%
Others <0.5%
Undecided 7%

Delegate count: 66 Pledged, 13 Unpledged Winner: Bernie Sanders
Caucus date: March 1, 2016

Poll source Date 1st 2nd Other
Caucus results March 1, 2016 Bernie Sanders
59.44%
Hillary Clinton
39.85%
Other
0.71%
Washington Free Beacon/TPC Research[37]

Margin of error: ± 3%
Sample size: 1144

February 16–17, 2016 Bernie Sanders
49%
Hillary Clinton
43%
Undecided 9%
Quinnipiac University[38]

Margin of error: ± 4.9%
Sample size: 404

November 11–15, 2015 Hillary Clinton
55%
Bernie Sanders
27%
Martin O'Malley 2%
Undecided 15%
Suffolk University[39]

Margin of error: ± ?
Sample size: 159

September 13–16, 2014 Hillary Clinton
59%
Elizabeth Warren
21%
Joe Biden 8%
Andrew Cuomo 4%
Martin O’Malley 0%
Undecided 6%
Other 2%
Refused 1%

Delegate count: 55 Pledged, 15 Unpledged Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source Date 1st 2nd Other
Official Primary Results April 26, 2016 Hillary Clinton
51.8%
Bernie Sanders
46.4%
Others / Uncommitted
1.8%
Public Policy Polling[40]

Margin of error: ± 3.7%
Sample size: 709

April 22–24, 2016 Hillary Clinton
48%
Bernie Sanders
46%
Others / Undecided
6%
Quinnipiac[41]

Margin of error: ± 3.0%
Sample size: 1,037

April 12–18, 2016 Hillary Clinton
51%
Bernie Sanders
42%
Others / Undecided
8%
Emerson College[42]

Margin of error: ± 5.2%
Sample size: 356

April 10–11, 2016 Hillary Clinton
49%
Bernie Sanders
43%
Others / Undecided
3%
Emerson College Polling Society[43]

Margin of error: ± 6%
Sample size: 251 LV

November 17, 2015 Hillary Clinton
49.6%
Bernie Sanders
30.7%
Martin O’Malley 9.1%
Other 3.2%
Undecided 6.6%
Quinnipiac University[44]

Margin of error: ± 4%
Sample size: 610

October 7–11, 2015 Hillary Clinton
35%
Bernie Sanders
25%
Joe Biden 18%
Lincoln Chafee 0%
Lawrence Lessig 0%
Martin O’Malley 0%
Jim Webb 0%
Other 1%
Wouldn't vote 6%
Undecided 12%
Hillary Clinton
47%
Bernie Sanders
29%
Jim Webb 1%
Lincoln Chafee 0%
Lawrence Lessig 0%
Martin O’Malley 0%
Other 1%
Wouldn't vote 6%
Undecided 16%
Quinnipiac University[45]

Margin of error: ± 4.6%
Sample size: 459

March 6–9, 2015 Hillary Clinton
53%
Elizabeth Warren
15%
Joe Biden 8%
Bernie Sanders 2%
Martin O’Malley 1%
Jim Webb 1%
Other 2%
Wouldn't vote 3%
Undecided 15%

Delegate count: 21 Pledged, 10 Unpledged Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source Date 1st 2nd Other
Official Primary results April 26, 2016 Hillary Clinton
59.8%
Bernie Sanders
39.2%
Other
1.1%
Gravis Marketing

Margin of error: ± 3.1%
Sample size: 1,026

April 17–18, 2016 Hillary Clinton
45%
Bernie Sanders
38%
Others / Undecided
17%

Delegate count: 214 Pledged, 32 Unpledged Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source Date 1st 2nd Other
Official Primary results March 15, 2016 Hillary Clinton
64.4%
Bernie Sanders
33.3%
Other
2.3%
ARG[46]

Margin of error: ± 5.0%
Sample size: 400

March 11–13, 2016 Hillary Clinton
58%
Bernie Sanders
37%
Others / Undecided 5%
Quinnipiac[47]

Margin of error: ± 4.3%
Sample size: 519

March 8–13, 2016 Hillary Clinton
60%
Bernie Sanders
34%
Others / Undecided 6%
Public Policy Polling[48]

Margin of error: ± 3.9%
Sample size: 627

March 11–12, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Others / Undecided 11%
CBS News/YouGov[49]

Margin of error: ± 4.5%
Sample size: 796

March 9–11, 2016 Hillary Clinton
62%
Bernie Sanders
34%
Others / Undecided 4%
Florida Atlantic University[50]

Margin of error: ± 5%
Sample size: 414

March 8–11, 2016 Hillary Clinton
59%
Bernie Sanders
31%
Others / Undecided 10%
NBC News/Wall Street Journal/Marist[51]

Margin of error: ± 4.4%
Sample size: 500

March 4–10, 2016 Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided 5%
WTSP/Mason-Dixon[52]

Margin of error: ± 4.5%
Sample size: 500

March 7–9, 2016 Hillary Clinton
68%
Bernie Sanders
23%
Others / Undecided 9%
Quinnipiac[53]

Margin of error: ± 4.3%
Sample size: 511

March 2–7, 2016 Hillary Clinton
62%
Bernie Sanders
32%
Others / Undecided 6%
SurveyUSA/Bay News 9/News 13[54]

Margin of error: ± 3.4%
Sample size: 823

March 4–6, 2016 Hillary Clinton
61%
Bernie Sanders
30%
Others / Undecided 9%
CNN/ORC[55]

Margin of error: ± 6.0%
Sample size: 264

March 2–6, 2016 Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided 5%
Wash Post/Univision[56]

Margin of error: ± 6.0%
Sample size: 449

March 2-5, 2016 Hillary Clinton
64%
Bernie Sanders
26%
Others / Undecided 10%
University of North Florida[57]

Margin of error: ± 3.7%
Sample size: 685

February 22–27, 2016 Hillary Clinton
54%
Bernie Sanders
24%
Others / Undecided 22%
Public Policy Polling[58]

Margin of error: ± 5%
Sample size: 388

February 24–25, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Others / Undecided 11%
Gravis Marketing[59]

Margin of error: ± 4.3%
Sample size: 514

February 24, 2016 Hillary Clinton
58%
Bernie Sanders
42%
Quinnipiac[60]

Margin of error: ± 4.5%
Sample size: 476

February 21–24, 2016 Hillary Clinton
59%
Bernie Sanders
33%
Others / Undecided 8%
Florida Southern College[61]

Margin of error: ± 4.0%
Sample Size: 608

January 30 – February 6, 2016 Hillary Clinton
43%
Bernie Sanders
26%
Others / Undecided 31%
Florida Atlantic University[62]

Margin of error: ± 5.0%
Sample Size: 371

January 15–18, 2016 Hillary Clinton
62%
Bernie Sanders
26%
Martin O'Malley 2%
Not Reported
Polls in 2015
Poll source Date 1st 2nd Other
Florida Atlantic University[62]

Margin of error: ± 5.2%
Sample Size: 355

November 15–16, 2015 Hillary Clinton
66%
Bernie Sanders
22%
Martin O'Malley 4%
Other 4.5%
Undecided 3.7%
Bay News 9/ News13[63]

Margin of error: ± 3.9%
Sample size: 826

October 28 – November 1, 2015 Hillary Clinton
66%
Bernie Sanders
24%
Martin O'Malley 3%
Other 2%
Undecided 6%
Saint Leo University Polling Institute[64]

Margin of error: ±6.0%
Sample size: 165

October 17–22, 2015 Hillary Clinton
50.9%
Joe Biden 15.2% Bernie Sanders 13.3%
Unsure/Don't Know 8.5%
Quinnipiac University[65]

Margin of error: ± 4.8%
Sample size: 411

September 25 – October 5, 2015 Hillary Clinton
43%
Joe Biden
19%
Bernie Sanders 19%
Someone else/Undecided 13%
Public Policy Polling[66]

Margin of error: ± 5.1%
Sample size: 368

September 11–13, 2015 Hillary Clinton
55%
Bernie Sanders
18%
Joe Biden 17%
Martin O'Malley 2%
Jim Webb 1%
Lincoln Chafee 1%
Lawrence Lessig 0%
Someone else/Undecided 6%
Gravis Marketing[67]

Margin of error: ± 4%
Sample size: 693

September 5–11, 2015 Hillary Clinton
41.6%
Joe Biden
21.4%
Bernie Sanders 12.5%
Martin O'Malley 1.5%
Jim Webb 1.3%
Lincoln Chafee 0.4%
Unsure 21.3%
Quinnipiac University[68]

Margin of error: ± 5%
Sample size: 419

Posted September 4, 2015 Hillary Clinton
52%
Bernie Sanders
20%
Joe Biden 15%
Lincoln Chafee 4%
Martin O'Malley 1%
Jim Webb 1%
Other 1%
Undecided 6%
Quinnipiac University[69]

Margin of error: ± 5.3%
Sample size: 345

August 7–18, 2015 Hillary Clinton
48%
Bernie Sanders
15%
Joe Biden 11%
Martin O'Malley 1%
Jim Webb 1%
Lincoln Chafee 0%
Other 2%
Wouldn't vote 6%
Undecided 17%
St Pete Polls[70]

Margin of error: ± 3.0%
Sample size: 1080

July 18–28, 2015 Hillary Clinton
55%
Bernie Sanders
29%
Jim Webb 2%
Martin O'Malley 1%
Lincoln Chafee <1%
Unsure or someone else 13%
Mason-Dixon[71]

Margin of error: ± 4.5%
Sample size: 500

July 20–23, 2015 Hillary Clinton
58%
Bernie Sanders
17%
Martin O'Malley 2%
Lincoln Chafee 0%
Jim Webb 0%
Undecided 23%
Gravis Marketing[72]

Margin of error: ± 3%
Sample size: 881

June 16–20, 2015 Hillary Clinton
64.8%
Bernie Sanders
20.6%
Martin O'Malley 2.1%
Bill De Blasio 1.7%
Jim Webb 0.9%
Lincoln Chafee 0.4%
Unsure 9.5%
Quinnipiac University[73]

Margin of error: ± 5%
Sample size: 378

June 4–15, 2015 Hillary Clinton
64%
Joe Biden
9%
Bernie Sanders 8%
Martin O'Malley 1%
Lincoln Chafee 0%
Jim Webb 0%
Other 1%
Wouldn't vote 5%
Undecided 13%
Quinnipiac University[74]

Margin of error: ± 5.3%
Sample size: 344

March 17–28, 2015 Hillary Clinton
65%
Joe Biden
11%
Elizabeth Warren 7%
Bernie Sanders 3%
Jim Webb 2%
Martin O'Malley 0%
Other 1%
Wouldn't vote 2%
Undecided 10%
Joe Biden
42%
Elizabeth Warren
19%
Bernie Sanders 6%
Jim Webb 3%
Martin O'Malley 1%
Other 2%
Wouldn't vote 4%
Undecided 22%
Public Policy Polling[75]

Margin of error: ± 5.1%
Sample size: 371

March 19–22, 2015 Hillary Clinton
58%
Joe Biden
14%
Elizabeth Warren 10%
Bernie Sanders 3%
Martin O'Malley 2%
Jim Webb 1%
Other/Undecided 11%
[76]

Margin of error: ± 5%
Sample size: 435

February 24–25, 2015 Hillary Clinton
52%
Elizabeth Warren
14%
Joe Biden 9%
Martin O'Malley 2%
Mark Warner 2%
Jim Webb 2%
Undecided 18%
Quinnipiac University[77]

Margin of error: ± 5.5%
Sample size: 322

January 22 – February 1, 2015 Hillary Clinton
61%
Joe Biden
11%
Elizabeth Warren 9%
Bernie Sanders 2%
Martin O'Malley 1%
Jim Webb 1%
Other 2%
Wouldn't vote 4%
Undecided 10%
Joe Biden
39%
Elizabeth Warren
22%
Bernie Sanders 3%
Martin O'Malley 2%
Jim Webb 2%
Other 4%
Wouldn't vote 5%
Undecided 23%
Polls in 2014
Poll source Date 1st 2nd Other
Quinnipiac University[78]

Margin of error: ± 4.6%
Sample size: 457

July 17–21, 2014 Hillary Clinton
67%
Joe Biden
8%
Elizabeth Warren 8%
Andrew Cuomo 1%
Martin O'Malley 0%
Brian Schweitzer 0%
Other 1%
Wouldn't vote 3%
Undecided 11%
Public Policy Polling[79]

Margin of error: ± 6.2%
Sample size: 251

June 6–9, 2014 Hillary Clinton
66%
Elizabeth Warren
8%
Joe Biden 7%
Cory Booker 5%
Andrew Cuomo 4%
Mark Warner 1%
Kirsten Gillibrand 0%
Martin O'Malley 0%
Brian Schweitzer 0%
Someone else/Undecided 9%
Quinnipiac University[80]

Margin of error: ± 4.4%
Sample size: 501

April 23–28, 2014 Hillary Clinton
64%
Joe Biden
11%
Elizabeth Warren 6%
Andrew Cuomo 1%
Martin O'Malley 1%
Brian Schweitzer 1%
Other 1%
Wouldn't vote 3%
Undecided 13%
Quinnipiac University[81]

Margin of error: ± 4.3%
Sample size: 529

January 22–27, 2014 Hillary Clinton
64%
Joe Biden
9%
Elizabeth Warren 5%
Andrew Cuomo 1%
Martin O'Malley 1%
Mark Warner 1%
Other 2%
Wouldn't vote 2%
Undecided 16%
Polls in 2013
Poll source Date 1st 2nd Other
Quinnipiac University[82]

Margin of error: ± 4.2%
Sample size: 544

November 12–17, 2013 Hillary Clinton
70%
Joe Biden
9%
Elizabeth Warren 4%
Andrew Cuomo 2%
Martin O'Malley 1%
Mark Warner 1%
Other 2%
Wouldn't vote 2%
Undecided 10%
Public Policy Polling

Margin of error: ± 5.7%
Sample size: 300

March 15–18, 2013 Hillary Clinton
62%
Joe Biden
12%
Andrew Cuomo 5%
Elizabeth Warren 3%
Martin O'Malley 1%
Brian Schweitzer 1%
Mark Warner 1%
Kirsten Gillibrand 0%
Deval Patrick 0%
Someone Else/Undecided 14%
Public Policy Polling

Margin of error: ± 4.9%
Sample size: 401

January 11–13, 2013 Hillary Clinton
65%
Joe Biden
15%
Andrew Cuomo 4%
Elizabeth Warren 4%
Deval Patrick 1%
Mark Warner 1%
Kirsten Gillibrand 0%
Martin O'Malley 0%
Brian Schweitzer 0%
Someone Else/Undecided 11%
Andrew Cuomo
22%
Elizabeth Warren
15%
Deval Patrick 5%
Martin O'Malley 4%
Kirsten Gillibrand 3%
Mark Warner 2%
Brian Schweitzer 1%
Someone Else/Undecided 48%

Delegate count: 102 Pledged, 15 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
71.3%
Bernie Sanders
28.2%
Other 0.5%
SurveyMonkey[83]

Margin of error: ± ?
Sample size: 961

February 22–29, 2016 Hillary Clinton
59%
Bernie Sanders
36%
Others / Undecided 5%
WSB-TV/Landmark[84]

Margin of error: ± 3.5
Sample size: 800

February 28, 2016 Hillary Clinton
70%
Bernie Sanders
23%
Others / Undecided 7%
WSB-TV/Landmark[85]

Margin of error: ± 3.5%
Sample size: 800

February 26, 2016 Hillary Clinton
68%
Bernie Sanders
22%
Others / Undecided
10%
YouGov/CBS News[86]

Margin of error: ± 8.6%
Sample size: 492

February 22–26, 2016 Hillary Clinton
63%
Bernie Sanders
35%
Others / Undecided 2%
WABE 90.1[87]

Margin of error: ± 4.1%
Sample size: 400

February 22–24, 2016 Hillary Clinton
62%
Bernie Sanders
29%
Others / Undecided 9%
TEGNA/SurveyUSA[88]

Margin of error: ± 4.2%
Sample size: 501

February 22–23, 2016 Hillary Clinton
66%
Bernie Sanders
27%
Others / Undecided 7%
FOX 5 Atlanta[89]

Margin of error: ± 4.4%
Sample size: 491

February 22–23, 2016 Hillary Clinton
57%
Bernie Sanders
29%
Others / Undecided 14%
NBC News/Wall St. Jrnl[90]

Margin of error: ± 4.6%
Sample size: 461

February 18–23, 2016 Hillary Clinton
64%
Bernie Sanders
30%
Others / Undecided 6%
WSB-TV/Landmark[91]

Margin of error: ± 3.7%
Sample size: 700

February 21, 2016 Hillary Clinton
72%
Bernie Sanders
20%
Others / Undecided 8%
Public Policy Polling[92]

Margin of error: ± 4.4%
Sample size: 500

February 14–16, 2016 Hillary Clinton
60%
Bernie Sanders
26%
Landmark/RosettaStone

Margin of error: ± 4.0%
Sample size: 600

February 4, 2016 Hillary Clinton
63.3%
Bernie Sanders
21.5%
Undecided 15.2%
WXIA-TV/SurveyUSA[93]

Margin of error: ± 4.8%
Sample size: 2075

October 15–26, 2015 Hillary Clinton
73%
Bernie Sanders
16%
Martin O'Malley 4%
Undecided 5%
Opinion Savvy[94]

Margin of error: ± 4.8
Sample size: 413

Published September 3, 2015 Hillary Clinton
51%
Bernie Sanders
24%
Joe Biden 15%
Lincoln Chafee 5%
Martin O'Malley 0%
Jim Webb 0%
Someone else 1%
Undecided 5%

Delegate count: 53 Pledged, 7 Unpledged Delegate count: 25 Pledged, 9 Unpledged Winner: Bernie Sanders
Caucus date: March 26, 2016

Poll source Date 1st 2nd
Caucus results April 26, 2016 Bernie Sanders
69.8%
Hillary Clinton
30.0%

No polls were conducted for the Hawaii Democratic caucuses

Delegate count: 23 Pledged, 4 Unpledged Winner: Bernie Sanders
Caucus date: March 22, 2016

Poll source Date 1st 2nd Other
Caucus results March 24, 2016 Bernie Sanders
78.04%
Hillary Clinton
21.21%
Other
0.75%
Dan Jones & Associates [95]

Margin of error: ± 4.0%
Sample size: 601

February 17–26, 2016 Bernie Sanders
47%
Hillary Clinton
45%
Dan Jones & Associates [96]

Margin of error: ± 4.02%
Sample size: 595

October 28 – November 4, 2015 Hillary Clinton
55%
Bernie Sanders
35%
Other candidates 4%
Don't know 6%
Dan Jones & Associates[97]

Margin of error: ± 4%
Sample size: 586

September 22–30, 2015 Hillary Clinton
38%
Bernie Sanders
36%
Joe Biden 16%
Other/DK/NR 10%
Dan Jones & Associates[98]

Margin of error: ± ?
Sample size: ?

Published August 9, 2015 Hillary Clinton
44%
Bernie Sanders
22%
Joe Biden 15%
Other/DK/NR 19%
Idaho Politics Weekly[99]

Margin of error: ± ?
Sample size: ?

June 17 – July 1, 2015 Hillary Clinton
19%
Bernie Sanders
12%
Joe Biden 10%
Someone else 18%
Don't know 32%

Delegate count: 156 Pledged, 26 Unpledged Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source Date 1st 2nd Other
Primary results March 15, 2016 Hillary Clinton
50.6%
Bernie Sanders
48.6%
Others
0.8%
McKeon & Associates[100]

Margin of error: ± 4.1%
Sample size: 428

March 12, 2016 Hillary Clinton
31%
Bernie Sanders
30%
Others / Undecided 39%
Public Policy Polling[101]

Margin of error: ± 3.9%
Sample size: 627

March 11–12, 2016 Hillary Clinton
48%
Bernie Sanders
45%
Others / Undecided 7%
CBS News/YouGov[102]

Margin of error: ± 5.5%
Sample size: 756

March 9–11, 2016 Bernie Sanders
48%
Hillary Clinton
46%
Others / Undecided 6%
NBC News/Wall Street Journal/Marist[103]

Margin of error: ± 4.3%
Sample size: 529

March 4–10, 2016 Hillary Clinton
51%
Bernie Sanders
45%
Others / Undecided 4%
We Ask America[104]

Margin of error: ± 3.11%
Sample size: 994

March 7–8, 2016 Hillary Clinton
62%
Bernie Sanders
25%
Others / Undecided 13%
Chicago Tribune[105]

Margin of error: ±4.1%
Sample size: 600

March 2–6, 2016 Hillary Clinton
67%
Bernie Sanders
25%
Others / Undecided 8%
We Ask America[106]

Margin of error: ± 3.0
Sample size: 1,116

February 24, 2016 Hillary Clinton
57%
Bernie Sanders
28%
Others / Undecided 15%
The Simon Poll/SIU[107]

Margin of error: ± 5.6
Sample size: 306

February 15–20, 2016 Hillary Clinton
51%
Bernie Sanders
32%
Others / Undecided 17%
The Illinois Observer[108]

Margin of error: ± 4.23
Sample size: 560

February 11, 2016 Hillary Clinton
58%
Bernie Sanders
25%
Others / Undecided 18%
Public Policy Polling[109]

Margin of error: ± 4.9%
Sample size: 409

July 20–21, 2015 Hillary Clinton
60%
Bernie Sanders
23%
Others / Undecided 17%

Delegate count: 83 Pledged, 9 Unpledged Winner: Bernie Sanders
Primary date: May 3, 2016

Poll source Date 1st 2nd Other
Official Primary Results[110] May 3, 2016 Bernie Sanders
52.5%
Hillary Clinton
47.5%
ARG[111]

Margin of error: ± 5%
Sample size: 400

April 27–28, 2016 Hillary Clinton
51%
Bernie Sanders
43%
Others / Undecided
6%
NBC/WSJ/Marist[112]

Margin of error: ± 3.9%
Sample size: 645

April 26–28, 2016 Hillary Clinton
50%
Bernie Sanders
46%
Others / Undecided
4%
IPFW/Mike Downs Center[113]

Margin of error: ± 4.9%
Sample size: 400

April 13–27, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
IPFW/Downs Center[114]

Margin of error: ± 4.9%
Sample size: 400

April 18–23, 2016 Hillary Clinton
54%
Bernie Sanders
41%
Others / Undecided
5%
CBS/YouGov[115]

Margin of error: ± 8.2%
Sample size: 439

April 20–22, 2016 Hillary Clinton
49%
Bernie Sanders
44%
Others / Undecided
7%
FOX News[116]

Margin of error: ± 4%
Sample size: 603

April 18–21, 2016 Hillary Clinton
46%
Bernie Sanders
42%
Others / Undecided
12%
WTHR News[117]

Margin of error: ± 4.47%
Sample size: 500

April 18–21, 2016 Hillary Clinton
48%
Bernie Sanders
45%
Others / Undecided
7%

Delegate count: 44 Pledged, 8 Unpledged Winner: Hillary Clinton
Caucus date: February 1, 2016

Poll source Date 1st 2nd Other
Caucus results February 1, 2016 Hillary Clinton
49.9%
Bernie Sanders
49.6%
Martin O'Malley 0.6%
Emerson College[118]
Margin of error: ± 5.6%
Sample size: 300
January 29–31, 2016 Hillary Clinton
51%
Bernie Sanders
43%
Martin O'Malley 4%
Undecided 2%
Quinnipiac University[119]
Margin of error: ± 3.2%
Sample size: 919
January 25–31, 2016 Bernie Sanders
49%
Hillary Clinton
46%
Martin O'Malley 3%
Undecided 2%
Des Moines Register– Bloomberg–Selzer[120]
Margin of error: ± 4%
Sample size: 602
January 26–29, 2016 Hillary Clinton
45%
Bernie Sanders
42%
Martin O'Malley 3%
Undecided or Not Committed 9%
Public Policy Polling[121]

Margin of error ± 3.4%
Sample size: 851

January 26–27, 2016 Hillary Clinton
48%
Bernie Sanders
40%
Martin O'Malley 7%
No preference 5%
Gravis Marketing[122]

Margin of error ± 3%
Sample size: 810

January 26–27, 2016 Hillary Clinton
53%
Bernie Sanders
42%
Martin O'Malley 5%
No preference 0%
Monmouth University[123]

Margin of error ± 4.4%
Sample size: 504

January 23–26, 2016 Hillary Clinton
47%
Bernie Sanders
42%
Martin O'Malley 6%
Undecided 5%
American Research Group[124]

Margin of error ± 5.0%
Sample size: 400

January 21–24, 2016 Bernie Sanders
48%
Hillary Clinton
45%
Martin O'Malley 3%
No preference 4%
Quinnipiac University[125]

Margin of error: ± 4%
Sample size: 606

January 18–24, 2016 Bernie Sanders
49%
Hillary Clinton
45%
Martin O'Malley 4%
Undecided 2%
ISU/WHO-HD[126]

Margin of error: ±
Sample size: 356

January 5–22, 2016 Hillary Clinton
47%
Bernie Sanders
45%
Martin O'Malley <1%
Undecided 7%
Fox News[127]

Margin of error ± 4.5%
Sample size: 432

January 18–21, 2016 Hillary Clinton
48%
Bernie Sanders
42%
Martin O'Malley 3%
No preference 7%
YouGov/CBS News[128]

Margin of error ± 8.9%
Sample size: 906

January 17–21, 2016 Bernie Sanders
47%
Hillary Clinton
46%
Martin O'Malley 5%
No preference 2%
Emerson College Polling Society[129]

Margin of error: ± 5.9%
Sample size: 271

January 18–20, 2016 Hillary Clinton
52%
Bernie Sanders
43%
Martin O'Malley 3%
Undecided 2%
CNN/ORC[130]

Margin of error: ± 6%
Sample size: 280

January 15–20, 2016 Bernie Sanders
51%
Hillary Clinton
43%
Martin O'Malley 4%
Undecided 2%
Monmouth College/KBUR[131]

Margin of error: ± 4.1%
Sample size: 500

January 18–19, 2016 Hillary Clinton
47.7%
Bernie Sanders
39.3%
Martin O'Malley 7.4%
Undecided 5%
Loras College[132]

Margin of error: ± 4.4%
Sample size: 580

January 8–10, 2016 Hillary Clinton
46%
Bernie Sanders
40%
Martin O'Malley 8%
Undecided 5%
Public Policy Polling[133]

Margin of error: ± 4.1%
Sample size: 580

January 8–10, 2016 Hillary Clinton
46%
Bernie Sanders
40%
Martin O'Malley 8%
Undecided 5%
Bloomberg/DMR[134]

Margin of error: ± 4.4%
Sample size: 503

January 7–10, 2016 Hillary Clinton
42%
Bernie Sanders
40%
Martin O'Malley 4%
Other/Undecided 14%
American Research Group[135]

Margin of error: ± 4.0%
Sample size: 600

January 6–10, 2016 Bernie Sanders
47%
Hillary Clinton
44%
Martin O'Malley 3%
Undecided 5%
Quinnipiac University[136]

Margin of error: ± 4.4%
Sample size: 492

January 5–10, 2016 Bernie Sanders
49%
Hillary Clinton
44%
Martin O'Malley 4%
Undecided 3%
Mason-Dixon/AARP[137]

Margin of error: ±
Sample size: 503

January 4–8, 2016 Hillary Clinton
49%
Bernie Sanders
42%
Martin O’Malley 5%
Not Reported 4%
NBC News/WSJ/Marist[138]

Margin of error: ± 4.8%
Sample size: 422

January 2–7, 2016 Hillary Clinton
48%
Bernie Sanders
45%
Martin O’Malley 5%
Undecided 3%
Polls in 2015
Poll source Date 1st 2nd Other
Gravis Marketing[139]

Margin of error ± 5%
Sample Size: 418

December 18–21, 2015 Hillary Clinton
49%
Bernie Sanders
31%
Martin O'Malley 10%
Unsure 10%
YouGov/CBS News[140]

Margin of error ± 5.3%
Sample Size: 1252

December 14–17, 2015 Hillary Clinton
50%
Bernie Sanders
45%
Martin O'Malley 4%
No preference 1%
Public Policy Polling[141]

Margin of error: ± 4.3%
Sample Size: 526

December 10–13, 2015 Hillary Clinton
52%
Bernie Sanders
34%
Martin O'Malley 7%
Undecided 6%
Quinnipiac University[142]

Margin of error: ± 3.6%
Sample Size: 727

December 4–13, 2015 Hillary Clinton
51%
Bernie Sanders
40%
Martin O'Malley 6%
Undecided 3%
Fox News[143]

Margin of error: ± 5.0%
Sample Size: 357

December 7–10, 2015 Hillary Clinton
50%
Bernie Sanders
36%
Martin O'Malley 5%
Other 4%
Undecided 10%
Loras College[144]

Margin of error: ± 4.4
Sample Size: 501

December 7–10, 2015 Hillary Clinton
59%
Bernie Sanders
27%
Martin O'Malley 4%
Undecided 10%
Des Moines Register/Bloomberg/Selzer[145]

Margin of error ± 4.9%
Sample Size: 404

December 7–10, 2015 Hillary Clinton
48%
Bernie Sanders
39%
Martin O'Malley 4%
Undeicded 8%
Monmouth[146] Margin of error ± 4.9%

Sample Size: 405

December 3–6, 2015 Hillary Clinton
55%
Bernie Sanders
33%
Martin O'Malley 6%
CNN/ORC[146] Margin of error ± 4.5%


Sample Size: 442

November 28 – December 6, 2015 Hillary Clinton
54%
Bernie Sanders
36%
Martin O'Malley 4%
Quinnipiac University[147]

Margin of error ± 4.2%
Sample Size: 543

November 16–22, 2015 Hillary Clinton
51%
Bernie Sanders
42%
Martin O'Malley 4%
Undecided 3%
YouGov/CBS News[148]

Margin of error ± 7.6%
Sample Size: 602

November 15–19, 2015 Hillary Clinton
50%
Bernie Sanders
44%
Martin O'Malley 5%
Undecided 1%
CNN/ORC[149]

Margin of error ± 4.5%
Sample Size: 498

October 29 – November 4, 2015 Hillary Clinton
55%
Bernie Sanders
37%
Martin O'Malley 3%
None 1%
No Opinion 3%
Gravis Marketing/One America News Network[150]

Margin of error ± 3.0%
Sample Size: 272

October 30 – November 2, 2015 Hillary Clinton
57.1%
Bernie Sanders
24.8%
Martin O'Malley 2.9%
Not Sure 15.2%
Public Policy Polling[151]

Margin of error ± 3.9%
Sample Size: 615

October 30 – November 1, 2015 Hillary Clinton
57%
Bernie Sanders
25%
Martin O'Malley 7%
Lawrence Lessig 1%
Not Sure 9%
KBUR-Monmouth[152]

Margin of error: ± 3.76%
Sample size: 681

October 29–31, 2015 Hillary Clinton
45.8%
Bernie Sanders
31.7%
Martin O'Malley 5.4%
Undecided 17.0%
Monmouth University[153]

Margin of error ± 3.76%
Sample size: 681

October 29–31, 2015 Hillary Clinton
45.8%
Bernie Sanders
31.7%
Martin O'Malley 5.4%
Undecided 17%
Monmouth University[154]

Margin of error ± 4.9%
Sample size: 400

October 22–25, 2015 Hillary Clinton
65%
Bernie Sanders
24%
Martin O'Malley 5%
Lawrence Lessig 1%
Undecided 5%
YouGov/CBS News[155]

Margin of error ± 6.9%
Sample size: 555

October 15–22, 2015 Hillary Clinton
46%
Bernie Sanders
43%
Martin O'Malley 3%
Lincoln Chafee 1%
Lawrence Lessig 0%
No preference 7%
Des Moines Register/Bloomberg Politics[156]

Margin of error ± 4.9%
Sample size: 402

October 16–19, 2015 Hillary Clinton
48%
Bernie Sanders
41%
Martin O'Malley 2%
Jim Webb 1%
Lincoln Chafee 1%
Uncommited 3%
Not Sure 4%
NBC News/WSJ/Marist[157]

Margin of error: ± 5.3%
Sample size: 348

September 23–30, 2015 Hillary Clinton
33%
Bernie Sanders
28%
Joe Biden 22%
Martin O'Malley 3%
Jim Webb 1%
Lincoln Chafee <1%
Undecided 12%
Hillary Clinton
47%
Bernie Sanders
36%
Martin O'Malley 4%
Jim Webb 1%
Lincoln Chafee <1%
Undecided 13%
Public Policy Polling[158]

Margin of error ± 4.4%
Sample size: 494

September 18–20, 2015 Hillary Clinton
43%
Bernie Sanders
22%
Joe Biden 17%
Martin O'Malley 3%
Jim Webb 3%
Lincoln Chafee 2%
Lawrence Lessig 0%
Undecided 9%
YouGov/CBS News[159]

Margin of error ± 6.6%
Sample size: 646

September 3–10, 2015 Bernie Sanders
43%
Hillary Clinton
33%
Joe Biden 10%
No preference 7%
Martin O'Malley 5%
Lincoln Chafee 1%
Jim Webb 1%
Quinnipiac University[160]

Margin of error: ± 3.4%
Sample size: 832

Posted September 10, 2015 Bernie Sanders
41%
Hillary Clinton
40%
Joe Biden 12%
Martin O'Malley 3%
NBC News/Marist Poll[161]

Margin of error: ± 5.3%
Sample size: 345

Published September 6, 2015 Hillary Clinton
38%
Bernie Sanders
27%
Joe Biden 20%
Martin O'Malley 4%
Jim Webb 2%
Lincoln Chafee 1%
Undecided 8%
Hillary Clinton
48%
Bernie Sanders
37%
Martin O'Malley 4%
Jim Webb 2%
Lincoln Chafee 1%
Undecided 8%
Loras College[162]

Margin of error ± 4.37%
Sample size: 502

August 24–27, 2015 Hillary Clinton
48.2%
Bernie Sanders
22.9%
Joe Biden 16.3%
Martin O'Malley 4%
Lincoln Chafee 0.6%
Jim Webb 0.4%
Undecided 6.4%
Selzer & Co. of Des Moines[163]

Margin of error: ± 4.9%
Sample size: 404

August 23–26, 2015 Hillary Clinton
43%
Bernie Sanders
35%
Martin O'Malley 5%
Jim Webb 2%
Lincoln Chafee 1%
Not sure 8%
Uncommitted 6%
Hillary Clinton
37%
Bernie Sanders
30%
Joe Biden 14%
Martin O'Malley 3%
Jim Webb 2%
Lincoln Chafee 1%
Not sure 8%
Uncommitted 6%
Suffolk University[164]

Margin of error: ± 4.4%
Sample size: 500

August 20–24, 2015 Hillary Clinton
54%
Bernie Sanders
20%
Joe Biden 11%
Martin O'Malley 4%
Jim Webb 1%
Lincoln Chafee 0%
Undecided 9%
CNN/ORC[165]

Margin of error: ± 4.5%
Sample size: 429

August 7–11, 2015 Hillary Clinton
50%
Bernie Sanders
31%
Joe Biden 12%
Martin O'Malley 1%
Jim Webb 1%
Lincoln Chafee 0%
Not sure 11%
Public Policy Polling[166]

Margin of error: ± 4.1%
Sample size: 567

August 7–9, 2015 Hillary Clinton
52%
Bernie Sanders
25%
Martin O'Malley 7%
Jim Webb 3%
Lincoln Chafee 1%
Not sure 11%
NBC News/Marist[167]

Margin of error: ± 5.5%
Sample size: 320

July 14–21, 2015 Hillary Clinton
49%
Bernie Sanders
25%
Joe Biden 10%
Martin O'Malley 3%
Jim Webb 1%
Lincoln Chafee <1%
Undecided 11%
We Ask America[168]

Margin of error: 3.07%
Sample size: 1,022

June 27–29, 2015 Hillary Clinton
63%
Bernie Sanders
20%
Martin O'Malley 5%
Jim Webb 3%
Lincoln Chafee 1%
Undecided 8%
Quinnipiac University[169]

Margin of error: 3.6%
Sample size: 761

June 20–29, 2015 Hillary Clinton
52%
Bernie Sanders
33%
Joe Biden 7%
Martin O'Malley 3%
Jim Webb 1%
Lincoln Chafee 0%
Undecided 5%
Bloomberg

Margin of error: 4.9%
Sample size: 401

June 19–22, 2015 Hillary Clinton
50%
Bernie Sanders
24%
Martin O'Malley 2%
Lincoln Chafee 0%
Undecided 23%
Morning Consult

Margin of error: ?
Sample size: 322

May 31 – June 8, 2015 Hillary Clinton
54%
Bernie Sanders
12%
Joe Biden 9%
Martin O'Malley 1%
Jim Webb 1%
Lincoln Chafee 0%
Other 3%
Undecided 20%
Gravis Marketing

Margin of error: ± 5.0%
Sample size: 434

May 28–29, 2015 Hillary Clinton
59%
Bernie Sanders
15%
Martin O'Malley 3%
Jim Webb 2%
Bill DeBlasio 2%
Lincoln Chafee 1%
Unsure 17%
Bloomberg/Des Moines

Margin of error: ± 4.7%
Sample size: 437

May 25–29, 2015 Hillary Clinton
57%
Bernie Sanders
16%
Joe Biden 8%
Martin O'Malley 2%
Jim Webb 2%
Uncommitted 6%
Not sure 8%
Quinnipiac University

Margin of error: ± 3.7%
Sample size: 692

April 25 – May 4, 2015 Hillary Clinton
60%
Bernie Sanders
15%
Joe Biden 11%
Martin O'Malley 3%
Jim Webb 3%
Lincoln Chafee 0%
Undecided 7%
Public Policy Polling

Margin of error: ± 4.5%
Sample size: 466

April 23–26, 2015 Hillary Clinton
62%
Bernie Sanders
14%
Martin O'Malley 6%
Jim Webb 3%
Lincoln Chafee 2%
Undecided 13%
Loras College

Margin of error: ± 4.4%
Sample size: 491

April 21–23, 2015 Hillary Clinton
57%
Elizabeth Warren
14.7%
Joe Biden 5.9%
Martin O'Malley 2.4%
Bernie Sanders 2%
Jim Webb 1.2%
Lincoln Chafee 0%
Undecided 16.7%
Quinnipiac

Margin of error: ± 3.9%
Sample size: 619

February 16–23, 2015 Hillary Clinton
61%
Elizabeth Warren
19%
Joe Biden 7%
Bernie Sanders 5%
Jim Webb 2%
Martin O'Malley 0%
Undecided 6%
NBC News/Marist

Margin of error: ± 5.5%
Sample size: 321

February 3–10, 2015 Hillary Clinton
68%
Joe Biden
12%
Bernie Sanders 7%
Jim Webb 1%
Martin O'Malley <1%
Undecided 12%
Selzer & Co.

Margin of error: ± 4.9%
Sample size: 401

January 26–29, 2015 Hillary Clinton
56%
Elizabeth Warren
16%
Joe Biden 9%
Bernie Sanders 5%
Jim Webb 3%
Martin O'Malley 1%
Uncommitted 4%
Not sure 6%
Loras College

Margin of error: ± 6.06%
Sample size: 261

January 21–26, 2015 Hillary Clinton
48.3%
Elizabeth Warren
16.5%
Joe Biden 12.6%
Bernie Sanders 3.8%
Jim Webb 2.3%
Martin O'Malley 0.4%
Undecided 16.1%
Polls in 2014
Poll source Date 1st 2nd Other
Fox News

Margin of error: ± 5%
Sample size: 352

October 28–30, 2014 Hillary Clinton
62%
Elizabeth Warren
14%
Joe Biden 10%
Andrew Cuomo 2%
Martin O'Malley 2%
Other 1%
None of the above 2%
Don't know 6%
Reuters/Ipsos

Margin of error: ± ?
Sample size: 552

October 23–29, 2014 Hillary Clinton
60%
Elizabeth Warren
17%
Joe Biden 4%
Andrew Cuomo 3%
Bernie Sanders 2%
Kirsten Gillibrand 1%
Martin O'Malley 1%
Wouldn't vote 12%
Selzer & Co.

Margin of error: ± 4.8%
Sample size: 426

October 1–7, 2014 Hillary Clinton
53%
Elizabeth Warren
10%
Joe Biden 9%
John Kerry 7%
Bernie Sanders 3%
Andrew Cuomo 1%
Brian Schweitzer 1%
Jim Webb 1%
Martin O'Malley 0%
Uncommitted 3%
Not sure 12%
CNN/ORC

Margin of error: ± 5.5%
Sample size: 309

September 8–10, 2014 Hillary Clinton
53%
Joe Biden
15%
Elizabeth Warren 7%
Bernie Sanders 5%
Andrew Cuomo 3%
Martin O'Malley 2%
Deval Patrick 1%
Someone else 1%
None/No opinion 15%
Suffolk

Margin of error: ± 7.09%
Sample size: 191

August 23–26, 2014 Hillary Clinton
66.49%
Elizabeth Warren
9.95%
Joe Biden 7.85%
Andrew Cuomo 4.19%
Martin O'Malley 2.09%
Undecided 7.85%
NBC News/Marist

Margin of error: ± 4.2%
Sample size: 539

July 7–13, 2014 Hillary Clinton
70%
Joe Biden
20%
Undecided 10%
Vox Populi Polling

Margin of error: ± 6.6%
Sample size: 223

June 4–5, 2014 Hillary Clinton
65%
Joe Biden
18%
Elizabeth Warren 12%
Andrew Cuomo 3%
Martin O'Malley 2%
Public Policy Polling

Margin of error: ±5.2%
Sample size: 356

May 15–19, 2014 Hillary Clinton
59%
Joe Biden
12%
Elizabeth Warren 11%
Cory Booker 3%
Andrew Cuomo 3%
Mark Warner 2%
Kirsten Gillibrand 1%
Martin O'Malley 1%
Brian Schweitzer 1%
Someone else/Not sure 8%
Joe Biden
34%
Elizabeth Warren
22%
Andrew Cuomo 7%
Cory Booker 4%
Kirsten Gillibrand 3%
Martin O'Malley 2%
Brian Schweitzer 1%
Mark Warner 1%
Someone else/Not sure 26%
Elizabeth Warren
31%
Andrew Cuomo
14%
Cory Booker 9%
Kirsten Gillibrand 5%
Martin O'Malley 2%
Mark Warner 2%
Brian Schweitzer 1%
Someone else/Not sure 36%
Suffolk

Margin of error: ± 8.4%
Sample size: 135

April 3–8, 2014 Hillary Clinton
62.96%
Elizabeth Warren
11.85%
Joe Biden 9.63%
Mark Warner 1.48%
Andrew Cuomo 0.74%
Deval Patrick 0.74%
Cory Booker 0%
Undecided 11.85%
Public Policy Polling

Margin of error: ±5.4%
Sample size: 335

February 20–23, 2014 Hillary Clinton
67%
Joe Biden
12%
Elizabeth Warren 5%
Mark Warner 3%
Andrew Cuomo 2%
Cory Booker 1%
Kirsten Gillibrand 0%
Martin O'Malley 0%
Brian Schweitzer 0%
Someone Else/Undecided 10%
Joe Biden
40%
Elizabeth Warren
13%
Andrew Cuomo 8%
Martin O'Malley 5%
Cory Booker 2%
Kirsten Gillibrand 2%
Mark Warner 2%
Brian Schweitzer 1%
Someone Else/Undecided 28%
Elizabeth Warren
21%
Andrew Cuomo
11%
Cory Booker 8%
Martin O'Malley 6%
Kirsten Gillibrand 3%
Brian Schweitzer 2%
Mark Warner 2%
Someone Else/Undecided 47%
Polls in 2013
Poll source Date 1st 2nd Other
Cygnal

Margin of error: ±2.1%
Sample size: 2,175

July 10–12, 2013 Hillary Clinton
55.6%
Joe Biden
7.8%
Elizabeth Warren 5%
Andrew Cuomo 1.1%
Kirsten Gillibrand 0.5%
Martin O'Malley 0.2%
Unsure 29.7%
Public Policy Polling

Margin of error: ±6.1%
Sample size: 260

July 5–7, 2013 Hillary Clinton
71%
Joe Biden
12%
Elizabeth Warren 5%
Kirsten Gillibrand 2%
Mark Warner 2%
Cory Booker 1%
Andrew Cuomo 1%
Martin O'Malley 1%
Brian Schweitzer 0%
Someone Else/Undecided 5%
Joe Biden
51%
Elizabeth Warren
16%
Andrew Cuomo 9%
Cory Booker 6%
Kirsten Gillibrand 2%
Martin O'Malley 2%
Mark Warner 1%
Brian Schweitzer 0%
Someone Else/Undecided 13%
Elizabeth Warren
20%
Andrew Cuomo
18%
Cory Booker 12%
Kirsten Gillibrand 7%
Martin O'Malley 4%
Brian Schweitzer 3%
Mark Warner 2%
Someone Else/Undecided 33%
Public Policy Polling

Margin of error: ±5.5%
Sample size: 313

February 1–3, 2013 Hillary Clinton
68%
Joe Biden
21%
Andrew Cuomo 2%
Mark Warner 2%
Elizabeth Warren 2%
Deval Patrick 1%
Kirsten Gillibrand 0%
Martin O'Malley 0%
Brian Schweitzer 0%
Someone Else/Undecided 3%
Joe Biden
58%
Andrew Cuomo
13%
Elizabeth Warren 7%
Kirsten Gillibrand 6%
Deval Patrick 3%
Mark Warner 2%
Brian Schweitzer 1%
Martin O'Malley 0%
Someone Else/Undecided 11%
Andrew Cuomo
26%
Elizabeth Warren
17%
Martin O'Malley 8%
Kirsten Gillibrand 5%
Deval Patrick 3%
Brian Schweitzer 2%
Mark Warner 2%
Someone Else/Undecided 37%
Harper Polling

Margin of error:
Sample size: 183

January 29, 2013 Hillary Clinton
65.38%
Joe Biden
13.74%
Andrew Cuomo 3.85%
Undecided 17.03%


Delegate count: 33 Pledged, 4 Unpledged Winner: Bernie Sanders
Caucus date: March 5, 2016

Poll source Date 1st 2nd 3rd Other
Caucus results March 5, 2016 Bernie Sanders
67.9%
Hillary Clinton
32.1%
Uncommitted
0.0%
Fort Hays State University[170]

Margin of error: ± 5.0
Sample size: 440

February 19–26, 2016 Hillary Clinton
33%
Bernie Sanders
23%
Undecided 44%
Suffolk University[171]

Margin of error: ± ?
Sample size: 118

September 27–30, 2014 Hillary Clinton
62%
Elizabeth Warren
14%
Joe Biden
4%
Andrew Cuomo 4%, Martin O'Malley 1%, Other 2%, Undecided/Refused 14%

Delegate count: 55 Pledged, 5 Unpledged Winner: Hillary Clinton
Primary date: May 17, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary results[172] May 17, 2016 Hillary Clinton
46.8%
Bernie Sanders
46.3%
Others / Uncommitted
6.9%
Public Policy Polling[173]

Margin of error: ± 4.4%
Sample size: 501

March 1–2, 2016 Hillary Clinton
43%
Bernie Sanders
38%
Others / Undecided
19%
Public Policy Polling[174]

Margin of error: ± 4%
Sample size: 610

June 18–21, 2015 Hillary Clinton
56%
Bernie Sanders
12%
Jim Webb
7%
Lincoln Chafee 5%, Martin O'Malley 3%, Not sure 18%

Delegate count: 51 Pledged, 8 Unpledged Winner: Hillary Clinton
Primary date: March 5, 2016

Poll source Date 1st 2nd 3rd Other
Certified Primary results March 5, 2016 Hillary Clinton
71.1%
Bernie Sanders
23.2%
Others
5.7%
Magellan Strategies[175]

Margin of error: ± 3.3%
Sample size: 865

March 1, 2016 Hillary Clinton
61%
Bernie Sanders
14%
Others / Undecided
25%
Public Policy Polling[176]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
60%
Bernie Sanders
29%
WWL-TV-Clarus[177]

Margin of error: ?
Sample size: ?

September 20–23, 2015 Hillary Clinton
57%
Joe Biden
22%
Bernie
Sanders
7%
Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%

Delegate count: 25 Pledged, 5 Unpledged Winner: Bernie Sanders
Primary date: March 6, 2016

Poll source Date 1st 2nd Other
Caucus results March 6, 2016 Bernie Sanders
64.3
Hillary Clinton
35.5%
Other
0.2%
Critical Insights[178]

Margin of error: 4%
Sample size: 600

September 24–30, 2015 Bernie Sanders
28%
Hillary Clinton
27%
Other/DK/NR 45%

Delegate count: 95 Pledged, 23 Unpledged Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary results April 26, 2016 Hillary Clinton
62.5%
Bernie Sanders
33.8%
Others / Uncommitted
3.7%
ARG[179]

Margin of error: ± 5.0%
Sample size: 400

April 21-24, 2016 Hillary Clinton
50%
Bernie Sanders
44%
Others / Undecided
6%
Monmouth[180]

Margin of error: ± 5.7%
Sample size: 300

April 18-20, 2016 Hillary Clinton
57%
Bernie Sanders
32%
Others / Undecided
11%
Public Policy Polling[181]

Margin of error: ± 4.4%
Sample size: 492

April 15-17, 2016 Hillary Clinton
58%
Bernie Sanders
33%
Others / Undecided
9%
NBC 4/Marist[182]

Margin of error: ± 3.5%
Sample size: 775

April 5-9, 2016 Hillary Clinton
58%
Bernie Sanders
36%
Others / Undecided
6%
University of Maryland/Washington Post[183]

Margin of error: ± 5.5%
Sample size: 539

March 30 - April 4, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
Baltimore Sun[184]

Margin of error: ± 4.9%
Sample size: 400

March 4-8, 2016 Hillary Clinton
61%
Bernie Sanders
28%
Others / Undecided
11%
Gonzales/Arscott Research[185]

Margin of error: ± 5.0
Sample size: 411

February 29-March 4, 2016 Hillary Clinton
57%
Bernie Sanders
26%
Others / Undecided
17%
Goucher[186]

Margin of error: ± 3.5
Sample size: 794

February 13–18, 2016 Hillary Clinton
58%
Bernie Sanders
28%
Others / Undecided
14%
Baltimore Sun/University of Baltimore

Margin of error: ± 5%
Sample size: 402

January 11–16, 2016 Hillary Clinton
40%
Bernie Sanders
27%
Others / Undecided
33%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Baltimore Sun/University of Baltimore

Margin of error: ± 4.8%
Sample size: 419

November 13–17, 2015 Hillary Clinton
56%
Bernie Sanders
23%
Martin O'Malley
7%
Other/Unsure 14%
Washington Post

Margin of error: ± 5%
Sample size: 490

October 8–11, 2015 Hillary Clinton
43%
Joe Biden
26%
Bernie Sanders
20%
Martin O'Malley 4%, Jim Webb 1%, Lincoln Chafee 0%, None/Any/Other 3%, No Opinion 2%
Goucher[187]

Margin of error: ± 5.7%
Sample size: 300

September 26 – October 1, 2015 Hillary Clinton
43%
Joe Biden
23%
Bernie Sanders
17%
Martin O'Malley 2%, Jim Webb 2%, Lincoln Chafee 0%, None/Any/Other 2%, Undecided 11%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Washington Post[188]

Margin of error: ± 5%
Sample size: 538

February 13–16, 2014 Hillary Clinton
72%
Joe Biden
9%
Martin O'Malley
6%
Elizabeth Warren 3%, Andrew Cuomo 2%, None 1%, Undecided 7%
Baltimore Sun

Margin of error: ± 4.4%
Sample size: 500

February 8–12, 2014 Hillary Clinton
59%
Joe Biden
14%
Martin O'Malley
6%
Andrew Cuomo 4%, Undecided/Other 17%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
Washington Post

Margin of error:
Sample size:

February 21–24, 2013 Hillary Clinton
56%
Joe Biden
18%
Martin O'Malley
8%
Andrew Cuomo 4%, None/other/any of them 4%, No opinion 9%

Delegate count: 91 Pledged, 25 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd 3rd Other
Primary results March 1, 2016 Hillary Clinton
49.7%
Bernie Sanders
48.3%
Others / Uncommitted
2.0%
SurveyMonkey[189]

Margin of error: ± ?
Sample size: 1,224

February 22–29, 2016 Hillary Clinton
48%
Bernie Sanders
46%
Others / Undecided
6%
Emerson College[190]

Margin of error: ± 3.7%
Sample size: 670

February 26–28, 2016 Hillary Clinton
54%
Bernie Sanders
43%
Others / Undecided
3%
Suffolk University[191]

Margin of error: ± 4.4%
Sample size: 500

February 25–27, 2016 Hillary Clinton
50%
Bernie Sanders
42%
Others / Undecided
8%
WBZ-UMass Amherst[192]

Margin of error: ± 6.5%
Sample size: 400

February 19–25, 2016 Hillary Clinton
47%
Bernie Sanders
44%
Others / Undecided
9%
WBUR[193]

Margin of error: ± 4.9%
Sample size: 418

February 21–23, 2016 Hillary Clinton
49%
Bernie Sanders
44%
Others / Undecided
7%
Emerson College[194]

Margin of error: ± 4.75%
Sample size: 417

February 19–21, 2016 Hillary Clinton
46%
Bernie Sanders
46%
Undecided 5%
Public Policy Polling[195]

Margin of error: ± 4.2
Sample Size: 538

February 14–16, 2016 Bernie Sanders
49%
Hillary Clinton
42%
Undecided 9%
Emerson College

Margin of error: ± 6.0%
Sample size: 265

October 16–18, 2015 Hillary Clinton
59%
Bernie Sanders
25%
Jim Webb
5%
Martin O'Malley 3%, Lincoln Chafee 3%, Other 2%, Undecided 3%
Emerson College[196]

Margin of error: ± ?
Sample size: 430

March 14–19, 2015 Hillary Clinton
43%
Elizabeth Warren
16%
Joe Biden
10%
Bernie Sanders 6%, Martin O'Malley 2%, Other/Undecided 24%
Gravis Marketing

Margin of error: ± 4%
Sample size: 358

January 19–21, 2015 Hillary Clinton
46%
Elizabeth Warren
22%
Undecided 32%
Suffolk University

Margin of error: ± 4.9%
Sample size: 400

August 21–24, 2014 Hillary Clinton
55%
Elizabeth Warren
17.25%
Joe Biden
7.75%
Andrew Cuomo 4.75%, Martin O'Malley 1.5%, Undecided 12.25%, Refused 1.25%, Other 0.25%
Public Policy Polling

Margin of error: ± 3.8%
Sample size: 666

May 1–2, 2013 Hillary Clinton
55%
Joe Biden
17%
Andrew Cuomo
4%
Deval Patrick 4%, Elizabeth Warren 4%, Martin O'Malley 1%, Kirsten Gillibrand 0%, Brian Schweitzer 0%, Mark Warner 0%, Someone else/Not sure 14%

Delegate count: 130 Pledged, 17 Unpledged Winner: Bernie Sanders
Primary date: March 8, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary results March 8, 2016 Bernie Sanders
49.7%
Hillary Clinton
48.3%
Others / Uncommitted
2.1%
FOX 2 Detroit/Mitchell[197]

Margin of error: ± 4.5%
Sample size: 482

March 7, 2016 Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided
5%
FOX 2 Detroit/Mitchell[198]

Margin of error: ± 4.5%
Sample size: 475

March 6, 2016 Hillary Clinton
66%
Bernie Sanders
29%
Others / Undecided
5%
Monmouth[199]

Margin of error: ± 5.6%
Sample size: 302

March 3–6, 2016 Hillary Clinton
55%
Bernie Sanders
42%
Others / Undecided
4%
ARG[200]

Margin of error: ± 5.0%
Sample size: 400

March 4–5, 2016 Hillary Clinton
60%
Bernie Sanders
36%
Others / Undecided
4%
CBS News/YouGov[200]

Margin of error: ± 7.7%
Sample size: 597

March 2–4, 2016 Hillary Clinton
55%
Bernie Sanders
44%
Others / Undecided
1%
Mitchell/FOX 2[201]

Margin of error: ± 4.0%
Sample size: 610

March 2–3, 2016 Hillary Clinton
55%
Bernie Sanders
37%
Others / Undecided
8%
NBC News/Wall St. Jrnl[202]

Margin of error: ± 4.2%
Sample size: 546

March 1–3, 2016 Hillary Clinton
57%
Bernie Sanders
40%
Others / Undecided
3%
MSU[203]

Margin of error: ± 6.1%
Sample size: 262

January 25-March 3, 2016 Hillary Clinton
52%
Bernie Sanders
47%
Others / Undecided
1%
FOX 2 Detroit/Mitchell[204]

Margin of error: ± 4.7%
Sample size: 427

March 1, 2016 Hillary Clinton
61%
Bernie Sanders
33%
Others / Undecided
6%
MRG[205]

Margin of error: ± 4.0%
Sample size: 218

February 22–27, 2016 Hillary Clinton
56%
Bernie Sanders
36%
Others / Undecided
8%
FOX 2 Detroit/Mitchell[206]

Margin of error: ± 5.3%
Sample size: 344

February 23, 2016 Hillary Clinton
65%
Bernie Sanders
31%
Others / Undecided
4%
ARG[207]

Margin of error: ± 5%
Sample size: 400

February 19–20, 2016 Hillary Clinton
53%
Bernie Sanders
40%
Others / Undecided
7%
Fox 2 Detroit/Mitchell[208]

Margin of error: ± 4.69%
Sample size: 430

February 15, 2016 Hillary Clinton
60%
Bernie Sanders
27%
Others / Undecided 13%
Public Policy Polling[209]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
50%
Bernie Sanders
40%
Fox 2 Detroit/Mitchell[210]

Margin of error: ± 5.5%
Sample size: 321

February 4, 2016 Hillary Clinton
57%
Bernie Sanders
28%
Others / Undecided 15%
IMP/Target Insyght [210]

Margin of error: ± 5.0%
Sample size: 400

February 2–4, 2016 Hillary Clinton
62%
Bernie Sanders
30%
Others / Undecided 8%
Marketing Resource Group[211]

Margin of error: ± 4%
Sample size: 600

September 9–14, 2015 Hillary Clinton
41%
Bernie Sanders
22%
Joe Biden 22% Martin O'Malley 1%, Undecided 12%
Public Policy Polling[212]

Margin of error: ± 4.7%
Sample size: 431

June 25–28, 2015 Hillary Clinton
57%
Bernie Sanders
25%
Lincoln Chafee 5% Jim Webb 2%, Martin O'Malley 1%, Not sure 10%
Suffolk

Margin of error: ± ?
Sample size: 212

September 6–10, 2014 Hillary Clinton
61%
Joe Biden
17%
Elizabeth Warren
7%
Andrew Cuomo 4%, Martin O'Malley 1%, Undecided 9%, Refused 1%

Delegate count: 77 Pledged, 16 Unpledged Winner: Bernie Sanders
Caucus date: March 1, 2016

Poll source Date 1st 2nd 3rd Other
Caucus results March 1, 2016 Bernie Sanders
61.6%
Hillary Clinton
38.4%
Star Tribune/Mason-Dixon[213]

Margin of error: ± 5.7%
Sample size: 800

January 18–20, 2016 Hillary Clinton
59%
Bernie Sanders
25%
Martin O'Malley
1%
Undecided 15%
Public Policy Polling[214]

Margin of error: ± 4.9%
Sample size: 426

July 30 – August 2, 2015 Hillary Clinton
50%
Bernie Sanders
32%
Martin O'Malley
4%
Lincoln Chafee 3%, Jim Webb 2%, Not sure 10%
Suffolk University[215]

Margin of error: ± ?
Sample size: 100

April 24–28, 2014 Hillary Clinton
63%
Elizabeth Warren
15%
Joe Biden
4%
Cory Booker 3%, Deval Patrick 2%, Mark Warner 2%, Andrew Cuomo 1%, Undecided 10%
Public Policy Polling[216]

Margin of error: ± 5.1%
Sample size: 373

January 18–20, 2013 Hillary Clinton
59%
Joe Biden
14%
Amy Klobuchar
11%
Elizabeth Warren 4%, Andrew Cuomo 3%, Martin O'Malley 1%, Deval Patrick 0%, Brian Schweitzer 1%, Mark Warner 0%, Someone Else/Undecided 10%
Amy Klobuchar
43%
Andrew Cuomo
14%
Elizabeth Warren
10%
Martin O'Malley 1%, Deval Patrick 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 30%

Delegate count: 36 Pledged, 5 Unpledged Winner: Hillary Clinton
Primary date: March 8, 2016

Poll source Date 1st 2nd Other
Official Primary results March 8, 2016 Hillary Clinton
82.5%
Bernie Sanders
16.6%
Others / Uncommitted
0.9%
Magellan Strategies[217]

Margin of error: ±4.5%
Sample size: 471

February 29, 2016 Hillary Clinton
65%
Bernie Sanders
11%
Others / Undecided
24%
Public Policy Polling[218]

Margin of error: ± 4.3
Sample size: 514

February 14–16, 2016 Hillary Clinton
60%
Bernie Sanders
26%

Delegate count: 71 Pledged, 13 Unpledged Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary results March 15, 2016 Hillary Clinton
49.6%
Bernie Sanders
49.4%
Others / Uncommitted
1.0%
Public Policy Polling[219]

Margin of error: ± 3.4%
Sample size: 839

March 11–12, 2016 Bernie Sanders
47%
Hillary Clinton
46%
Others / Undecided
7%
RABA Research[220]

Margin of error: ± 4%
Sample size: 670

March 8–10, 2016 Hillary Clinton
44%
Bernie Sanders
40%
Others / Undecided
16%
Fort Hayes State University[221]

Margin of error: ± 8%
Sample size: 145

March 3–10, 2016 Hillary Clinton
47%
Bernie Sanders
40%
Others / Undecided 13%
Public Policy Polling[222]

Margin of error: 5.2%
Sample size: 352

August 7–9, 2015 Hillary Clinton
53%
Bernie Sanders
25%
Martin O'Malley
5%
Jim Webb 5%, Lincoln Chafee 1%, Not sure 12%

Delegate count: 21 Pledged, 6 Unpledged Winner: Bernie Sanders
Primary date: June 7, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary Results June 7, 2016 Bernie Sanders
51.6%
Hillary Clinton
44.2%
No Preference
4.3%
Gravis Marketing[223]

Margin of error: 3%
Sample size: 1,035

February 24–25, 2015 Hillary Clinton
42.2%
Elizabeth Warren
34.3%
Joe Biden
5.9%
Jim Webb 2.9%, Mark Warner 2%, Martin O'Malley 1%, Unsure 11.8%
Public Policy Polling

Margin of error: ± 5%
Sample size: 381

November 15–17, 2013 Hillary Clinton
47%
Brian Schweitzer
26%
Elizabeth Warren
8%
Joe Biden 6%, Andrew Cuomo 3%, Cory Booker 1%, Martin O'Malley 1%, Kirsten Gillibrand 0%, Mark Warner 0%, Someone Else/Undecided 7%
Public Policy Polling

Margin of error: ± 5.6%
Sample size: 316

June 21–23, 2013 Hillary Clinton
52%
Brian Schweitzer
17%
Joe Biden
9%
Cory Booker 3%, Elizabeth Warren 3%, Andrew Cuomo 1%, Kirsten Gillibrand 1%, Martin O'Malley 0%, Mark Warner 0%, Someone Else/Undecided 13%
Public Policy Polling

Margin of error: ± 5.1%
Sample size: 371

February 15–17, 2013 Hillary Clinton
58%
Brian Schweitzer
22%
Joe Biden
9%
Elizabeth Warren 5%, Andrew Cuomo 3%, Martin O'Malley 1%, Deval Patrick 1%, Kirsten Gillibrand 0%, Mark Warner 0%, Someone Else/Undecided 5%
Brian Schweitzer
35%
Joe Biden
28%
Elizabeth Warren
13%
Mark Warner 5%, Andrew Cuomo 4%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Deval Patrick 0%, Someone Else/Undecided 13%
Brian Schweitzer
46%
Elizabeth Warren
18%
Andrew Cuomo
12%
Mark Warner 3%, Martin O'Malley 2%, Kirsten Gillibrand 1%, Deval Patrick 1%, Someone Else/Undecided 18%

Delegate count: 25 Pledged, 5 Unpledged Winner: Bernie Sanders
Primary date: March 5, 2016

Poll source Date 1st 2nd 3rd
Caucus results March 5, 2016 Bernie Sanders
57.1%
Hillary Clinton
42.9%

No polls were conducted for the Nebraska Democratic caucuses

Delegate count: 35 Pledged, 8 Unpledged Winner: Hillary Clinton
Caucus date: February 20, 2016

Poll source Date 1st 2nd Other
Caucus results February 20, 2016 Hillary Clinton
52.6%
Bernie Sanders
47.3%
Other
0.1%
Gravis Marketing[224]

Margin of error: ± 4.0
Sample size: 516

February 14–15, 2016 Hillary Clinton
53%
Bernie Sanders
47%
CNN/ORC[225]

Margin of error: ± 6.0
Sample size: 282

February 10–15, 2016 Hillary Clinton
48%
Bernie Sanders
47%
Others / Undecided
6%
Washington Free Beacon/TPC Research[226]

Margin of error: ± 2.9
Sample size: 1,236

February 8–10, 2016 Hillary Clinton
45%
Bernie Sanders
45%
Undecided 9%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Gravis Marketing

Margin of error: ± 5%
Sample size: 326

December 23–27, 2015 Hillary Clinton
50%
Bernie Sanders
27%
Martin O'Malley
1%
Unsure 16%
CNN/ORC[227]

Margin of error: ± 6%
Sample size: 253

October 3–10, 2015 Hillary Clinton
50%
Bernie Sanders
34%
Joe Biden
12%
Gravis Marketing

Margin of error: ± 5%
Sample size: 416

July 12–13, 2015 Hillary Clinton
55%
Bernie Sanders
18%
Elizabeth Warren
8%
Joe Biden 5%, Lincoln Chafee 1%, Jim Webb 1%, Martin O'Malley 0%, Unsure 12%
Gravis Marketing[228]

Margin of error: ± 6%
Sample size: 324

March 27, 2015 Hillary Clinton
61%
Elizabeth Warren
15%
Bernie Sanders
7%
Joe Biden 3%, Al Gore 3%, Martin O'Malley 1%, Jim Webb 0%, Unsure 10%
Gravis Marketing

Margin of error: ± 6%
Sample size: 324

February 21–22, 2015 Hillary Clinton
58%
Elizabeth Warren
20%
Joe Biden
8%
Bernie Sanders 4%, Jim Webb 3%, Martin O'Malley 0%, Undecided 7%


Delegate count: 24 Pledged, 8 Unpledged Winner: Bernie Sanders
Primary date: February 9, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary results February 9, 2016 Bernie Sanders
60.1%
Hillary Clinton
37.7%
Others / Uncommitted
2.2%
American Research Group[229]
Margin of error: ± 5%
Sample size: 408
February 6–7, 2016 Bernie Sanders
53%
Hillary Clinton
41%
Undecided
6%
University of Massachusetts-Lowell/7 News survey[230]
Margin of error: ± 5.38%
Sample size: 428
February 4–6, 2016 Bernie Sanders
57%
Hillary Clinton
40%
Others / Undecided
3%
University of Massachusetts-Lowell/7 News survey[231]
Margin of error: ± 5.3%
Sample size: 442
January 29–31, 2016 Bernie Sanders
61%
Hillary Clinton
30%
Martin O'Malley
1%
Undecided 6%
CNN/WMUR[232]
Margin of error: ± 5.3%
Sample size: 347
January 27–30, 2016 Bernie Sanders
57%
Hillary Clinton
34%
Martin O'Malley
1%
Other, Undecided, or Not Committed 9%
Emerson College[233]

Margin of error ± 5.2%
Sample Size: 350

January 25–26, 2016 Bernie Sanders
52%
Hillary Clinton
44%
Martin O'Malley
3%
Other 1%
American Research Group[234]

Margin of error ± 4%
Sample Size: 396

January 23–25, 2016 Bernie Sanders
49%
Hillary Clinton
42%
Martin O'Malley
3%
Other 6%
Franklin Pierce University/Boston Herald[235]

Margin of error ± 4.9%
Sample Size: 408

January 20–24, 2016 Bernie Sanders
55%
Hillary Clinton
39%
Martin O'Malley
2%
Other 5%
Fox News[236]

Margin of error ± 4.5%
Sample Size: 400

January 18–21, 2016 Bernie Sanders
56%
Hillary Clinton
34%
Martin O'Malley
3%
Other 7%
CBS News/YouGov[237]

Margin of error ± 6.2%
Sample Size:

January 18–21, 2016 Bernie Sanders
57%
Hillary Clinton
38%
Martin O'Malley
5%
No preference 0%
Suffolk University[238]

Margin of error –
Sample Size: 500

January 17–21, 2016 Bernie Sanders
50%
Hillary Clinton
41%
Martin O'Malley
2%
Other/Undecided 7%
American Research Group[239]

Margin of error ± 4%
Sample Size: 600

January 15–18, 2016 Bernie Sanders
49%
Hillary Clinton
43%
Martin O'Malley
3%
Undecided 5%
Gravis Marketing[240]

Margin of error ± 4.5%
Sample Size: 472

January 15–18, 2016 Bernie Sanders
46%
Hillary Clinton
43%
Martin O'Malley
2%
Undecided 8%
CNN and WMUR[241]

Margin of error ± 4.8%
Sample Size: 420

January 13–18, 2016 Bernie Sanders
60%
Hillary Clinton
33%
Martin O'Malley
1%
Undecided 6%
Monmouth University Poll[242]

Margin of error ± 4.8%
Sample Size: 413

January 7–10, 2016 Bernie Sanders
53%
Hillary Clinton
39%
Martin O'Malley
5%
Undecided 3%
Fox News[243]

Margin of error ± 5%
Sample Size: 386

January 4–7, 2016 Bernie Sanders
50%
Hillary Clinton
37%
Martin O'Malley
3%
Other 2%, None of the above 5%, Don't know 3%
NBC News/WSJ/Marist

Margin of error: ± 4.8% Sample size: 425

January 2–7, 2016 Bernie Sanders
50%
Hillary Clinton
46%
Martin O'Malley
1%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
American Research Group[239]

Margin of error ± 4%
Sample Size: 600

December 20–22, 2015 Hillary Clinton
46%
Bernie Sanders
43%
Martin O'Malley
3%
Other <0.5%, Undecided 7%
YouGov/CBS News[244]

Margin of error ± 5.7%
Sample Size: 1091

December 14–17, 2015 Bernie Sanders
56%
Hillary Clinton
42%
Martin O'Malley
1%
No preference 1%
Boston Herald[245]

Margin of error ± 4.8%
Sample Size: 410

December 13–17, 2015 Bernie Sanders
48%
Hillary Clinton
46%
Martin O'Malley
2%
Undecided 4%
CNN and WMUR[246]

Margin of error: ± 5.1%
Sample size: 370

November 30 – December 7, 2015 Bernie Sanders
50%
Hillary Clinton
40%
Martin O'Malley
1%
Someone Else/Not Sure 6%
Public Policy Polling[247]

Margin of error: ± 4.6%
Sample size: 458

November 30 – December 2, 2015 Hillary Clinton
44%
Bernie Sanders
42%
Martin O'Malley
8%
Someone Else/Not Sure 7%
YouGov/CBS News[140]

Margin of error: ± 5.2%
Sample size: 561

November 15–19, 2015 Bernie Sanders
52%
Hillary Clinton
45%
Martin O'Malley 3% Undecided 0%
Fox News[248]

Margin of error: ± 3.5%
Sample size: 804

November 15–17, 2015 Bernie Sanders
45%
Hillary Clinton
44%
Martin O'Malley 5% None 1%, Don't Know 5%
Gravis Marketing[249]

Margin of error: ± 6.7%
Sample size: 214

November 11, 2015 Hillary Clinton
46%
Bernie Sanders
25%
Martin O'Malley
3%
Unsure 26%
Monmouth University Polling Institute[250]

Margin of error: ± 4.9%
Sample size: 403

October 29 – November 1, 2015 Hillary Clinton
48%
Bernie Sanders
45%
Martin O'Malley
3%
Lawrence Lessig 1%
YouGov/CBS News[251]

Margin of error: ± 7.1%
Sample size: 499

October 15–22, 2015 Bernie Sanders
54%
Hillary Clinton
39%
Martin O'Malley 3% Lincoln Chafee 0%, Lawrence Lessig 0%, No preference 3%
Public Policy Polling

Margin of error: ± 4.9%
Sample size: 393

October 16–18, 2015 Hillary Clinton
41%
Bernie Sanders
33%
Joe Biden
11%
Martin O'Malley 4%, Lincoln Chafee 2%, Jim Webb 2%, Lawrence Lessig 0%, Not Sure 7%
Bloomberg/San Anselm Poll[252]

Margin of error: ± 4.9%
Sample size: 400

October 15–18, 2015 Bernie Sanders
41%
Hillary Clinton
36%
Joe Biden
10%
Jim Webb 1%, Lawrence Lessig 1%, Someone Else 1%, None of the Above 2%, Not Sure 8%
Franklin Pierce-Herald[253]

Margin of error: ± 4.9%
Sample size: 403

October 14–17, 2015 Bernie Sanders
38%
Hillary Clinton
30%
Joe Biden
19%
Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee 1%
Boston Globe/Suffolk University[254]

Margin of error: ± 4.4%
Sample size: 500

October 14–15, 2015 Hillary Clinton
36.8%
Bernie Sanders
35.4%
Joe Biden
11.2%
Jim Webb 2.6%, Martin O'Malley 1.4%, Lincoln Chafee 0.6%, Lawrence Lessig 0.2%, Undecided 11.6%
Gravis Marketing[255]

Margin of error: ± 5.1%
Sample size: 373

October 5–6, 2015 Bernie Sanders
32.8%
Hillary Clinton
30.2%
Joe Biden
10.6%
Martin O'Malley 1.5%, Jim Webb 0.7%, Lincoln Chafee 0.8%, Undecided 23.3%
NBC News/WSJ/Marist[256]

Margin of error: ± 4.9%
Sample size: 404

September 23–30, 2015 Bernie Sanders
42%
Hillary Clinton
28%
Joe Biden
18%
Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 1%, Undecided 9%
Bernie Sanders
48%
Hillary Clinton
39%
Lincoln Chafee 2% Martin O'Malley 2%, Jim Webb 1%, Undecided 9%
UNH/WMUR[257]

Margin of error: ± 5.5%
Sample size: 314

September 17–23, 2015 Bernie Sanders
46%
Hillary Clinton
30%
Joe Biden
14%
Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 1%, Don't Know Yet 6%
MassINC/WBUR/NPR[258]

Margin of error: ± 4.9%
Sample size: 404

September 12–15, 2015 Bernie Sanders
35%
Hillary Clinton
31%
Joe Biden
14%
Jim Webb 2%, Martin O'Malley 1%, Lincoln Chafee 1%, Did not know/refused 10%, Some other candidate 4%, Would not vote 2%
Monmouth University[259]

Margin of error: ± 4.9%
Sample size: 400

September 10–13, 2015 Bernie Sanders
43%
Hillary Clinton
36%
Joe Biden
13%
Martin O'Malley 2%, Lincoln Chafee 1%, Jim Webb 1%, Lawrence Lessig 1%, other 1%, undecided 3%
YouGov/CBS News[260]

Margin of error: ± 7.4%
Sample size: 548

September 3–10, 2015 Bernie Sanders
52%
Hillary Clinton
30%
Joe Biden
9%
Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%, No preference 8%
NBC News/Marist Poll[261]

Margin of error: ± 5.2%
Sample size: 356

Published September 6, 2015 Bernie Sanders
41%
Hillary Clinton
32%
Joe Biden
16%
Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee <1%, Undecided 8%
Bernie Sanders
49%
Hillary Clinton
38%
Jim Webb
2%
Lincoln Chafee 1%, Martin O'Malley 1%, Undecided 8%
Public Policy Polling[262]

Margin of error: ± 5.1%
Sample size: 370

August 21–24, 2015 Bernie Sanders
42%
Hillary Clinton
35%
Jim Webb
6%
Martin O'Malley 4%, Lincoln Chafee 2%, Lawrence Lessig 1%, Not sure 10%
Franklin Pierce University/Boston Herald[263]

Margin of error: ± 4.7%
Sample size: 442

August 7–10, 2015 Bernie Sanders
44%
Hillary Clinton
37%
Joe Biden
9%
Jim Webb 1%, Martin O'Malley <1%, Lincoln Chafee <1%, Other/Not sure 9%
Gravis Marketing/One
America News[264]

Margin of error: ± 4.5%
Sample size: 475

July 31 – August 3, 2015 Hillary Clinton
43%
Bernie Sanders
39%
Elizabeth Warren
8%
Joe Biden 6%, Martin O'Malley 2%, Jim Webb 2%, Lincoln Chafee 0%
UNH/WMUR[265]

Margin of error: ± 5.9%
Sample size: 276

July 22–30, 2015 Hillary Clinton
42%
Bernie Sanders
36%
Joe Biden
5%
Martin O'Malley 1%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 3%, Don't Know Yet 12%
NBC News/Marist[266]

Margin of error: ± 5.4%
Sample size: 329

July 14–21, 2015 Hillary Clinton
42%
Bernie Sanders
32%
Joe Biden
12%
Martin O'Malley 3%, Lincoln Chafee 2%, Jim Webb 1%, Undecided 10%
CNN/WMUR[267]

Margin of error: ± 5.2%
Sample size: 360

June 18–24, 2015 Hillary Clinton
43%
Bernie Sanders
35%
Joe Biden
8%
Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 2%, Not sure 9%
Bloomberg/Saint Anselm

Margin of error: ± 4.9%
Sample size: 400

June 19–22, 2015 Hillary Clinton
56%
Bernie Sanders
24%
Martin O'Malley
2%
Lincoln Chafee 1%, None of the above 4%, Not sure 12%
Suffolk

Margin of error: ± 4.4%
Sample size: 500

June 11–15, 2015 Hillary Clinton
41%
Bernie Sanders
31%
Joe Biden
7%
Martin O'Malley 3%, Lincoln Chafee 1%, Jim Webb 1%, Other 0%, Undecided 15%
Morning Consult

Margin of error: ± 6%
Sample size: 279

May 31 – June 8, 2015 Hillary Clinton
44%
Bernie Sanders
32%
Joe Biden
8%
Martin O'Malley 2%, Jim Webb 1%, Lincoln Chafee 0%, Someone else 0%, Don't know/no opinion 11%
Purple Strategies

Margin of error: ± 4.9%
Sample size: 400

May 2–6, 2015 Hillary Clinton
62%
Bernie Sanders
18%
Joe Biden
5%
Martin O'Malley 3%, Lincoln Chafee 1%, Jim Webb 1%, Someone else 0%, None of the above 3%, Not sure 8%
UNH/WMUR

Margin of error: ± 6.5%
Sample size: 229

April 24 – May 3, 2015 Hillary Clinton
51%
Elizabeth Warren
20%
Bernie Sanders
13%
Andrew Cuomo 3%, Joe Biden 2%, Lincoln Chafee 1%, Martin O'Malley 1%, Jim Webb 1%, Undecided 8%
Gravis Marketing

Margin of error: ± 5%
Sample size: 369

April 21–22, 2015 Hillary Clinton
45%
Elizabeth Warren
24%
Bernie Sanders
12%
Joe Biden 7%, Martin O'Malley 4%, Lincoln Chafee 2%, Jim Webb 2%, Bill de Blasio 0.4%, Undecided 5%
Hillary Clinton
54%
Bernie Sanders
19%
Joe Biden
10%
Martin O'Malley 5%, Jim Webb 4%, Lincoln Chafee 2%, Bill de Blasio 1%, Undecided 6%
Public Policy Polling

Margin of error: ± 5.4%
Sample size: 329

April 9–13, 2015 Hillary Clinton
45%
Elizabeth Warren
23%
Bernie Sanders
12%
Joe Biden 7%, Martin O'Malley 3%, Lincoln Chafee 1%, Jim Webb 1%, Other/Undecided 9%
Franklin Pierce University/Boston Herald

Margin of error: ± 4.7%
Sample size: 417

March 22–25, 2015 Hillary Clinton
47%
Elizabeth Warren
22%
Joe Biden
10%
Bernie Sanders 8%, Andrew Cuomo 4%, Martin O'Malley 1%, Jim Webb <1%, Other 3%, Unsure 5%
Hillary Clinton
41%
Elizabeth Warren
20%
Al Gore
16%
Joe Biden 7%, Bernie Sanders 6%, Andrew Cuomo 1%, Martin O'Malley <1%, Jim Webb <1%, Other 2%, Unsure 6%
Gravis Marketing

Margin of error: ± 5%
Sample size: 427

March 18–19, 2015 Hillary Clinton
49%
Elizabeth Warren
20%
Bernie Sanders
12%
Joe Biden 5%, Martin O'Malley 2%, Jim Webb 2%, Unsure 10%
NBC News/Marist

Margin of error: ± 5.6%
Sample size: 309

February 3–10, 2015 Hillary Clinton
69%
Bernie Sanders
13%
Joe Biden
8%
Jim Webb 2%, Martin O'Malley <1%, Undecided 7%
Purple Strategies

Margin of error: ± 4.9%
Sample size: 400

January 31 – February 5, 2015 Hillary Clinton
56%
Elizabeth Warren
15%
Joe Biden
8%
Bernie Sanders 8%, Martin O'Malley 0%, Jim Webb 0%, Someone else 0%, None of the above 2%, Not sure 11%
Gravis Marketing

Margin of error: ± 5%
Sample size: 384

February 2–3, 2015 Hillary Clinton
44%
Elizabeth Warren
25%
Bernie Sanders
13%
Joe Biden 5%, Martin O'Malley 1%, Jim Webb 1%, Unsure 10%
UNH/WMUR

Margin of error: ± 5.7%
Sample size: 297

January 22 – February 3, 2015 Hillary Clinton
58%
Elizabeth Warren
14%
Joe Biden
8%
Bernie Sanders 6%, Andrew Cuomo 2%, Martin O'Malley 1%, Jim Webb 1%, Someone else 1%, Don't know yet 9%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Purple Insights

Margin of error: ± 4.9%
Sample size: 404

November 12–18, 2014 Hillary Clinton
62%
Elizabeth Warren
13%
Bernie Sanders
6%
Joe Biden 5%, Deval Patrick 2%, Martin O'Malley 1%, Someone else 0%, None of the above 2%, Not sure 8%
New England College

Margin of error: ± 4.06%
Sample size: 583

October 31 – November 1, 2014 Hillary Clinton
53.1%
Elizabeth Warren
16.8%
Bernie Sanders
7%
Joe Biden 5.8%, Martin O'Malley 2.3%, Deval Patrick 1.4%, Andrew Cuomo 1.2%, Kirsten Gillibrand 1.2%, Mark Warner 1.2%, Other 10%
UMass Amherst

Margin of error: ± ?
Sample size: 204

October 10–15, 2014 Hillary Clinton
49%
Elizabeth Warren
16%
Bernie Sanders
11%
Joe Biden 6%, Andrew Cuomo 3%, Deval Patrick 3%, Martin O'Malley <1%, Cory Booker <1%, Other 11%
WMUR/UNH

Margin of error: ± 5.9%
Sample size: 275

September 29 – October 5, 2014 Hillary Clinton
58%
Elizabeth Warren
18%
Joe Biden
3%
Martin O'Malley 3%, Bernie Sanders 3%, Andrew Cuomo 1%, Mark Warner <1%, Other 1%, Undecided 13%
CNN/ORC

Margin of error: ± 5.5%
Sample size: 334

September 8–11, 2014 Hillary Clinton
60%
Elizabeth Warren
11%
Joe Biden
8%
Bernie Sanders 7%, Deval Patrick 4%, Andrew Cuomo 1%, Martin O'Malley 1%, Other 1%, None/No one 2%, No opinion 6%
NBC News/Marist

Margin of error: ± 4.5%
Sample size: 479

July 7–13, 2014 Hillary Clinton
74%
Joe Biden
18%
Undecided 8%
WMUR/UNH

Margin of error: ± 6.1%
Sample size: 257

June 19 – July 1, 2014 Hillary Clinton
59%
Joe Biden
14%
Elizabeth Warren
8%
Bernie Sanders 5%, Andrew Cuomo 3%, Mark Warner 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Other 1%, Undecided 9%
WMUR/UNH

Margin of error: ± 7.2%
Sample size: 184

April 1–9, 2014 Hillary Clinton
65%
Joe Biden
6%
Andrew Cuomo
4%
Mark Warner 2%, Martin O'Malley 0%, Brian Schweitzer 0%, Other 5%, Undecided 18%
WMUR/UNH

Margin of error: ± 6.2%
Sample size: 252

January 21–26, 2014 Hillary Clinton
74%
Joe Biden
10%
Andrew Cuomo
2%
Mark Warner 1%, Martin O'Malley <1%, Brian Schweitzer <1%, Kirsten Gillibrand 0%, Other 2%, Undecided 10%
Purple Strategies

Margin of error: ± 5.4%
Sample size: 334

January 21–23, 2014 Hillary Clinton
68%
Elizabeth Warren
13%
Joe Biden
6%
Deval Patrick 2%, Martin O'Malley 1%, Other 2%, None 1%, Undecided 5%
Public Policy Polling

Margin of error: ± 4.4%
Sample size: 502

January 9–12, 2014 Hillary Clinton
65%
Joe Biden
10%
Elizabeth Warren
8%
Andrew Cuomo 3%, Cory Booker 2%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone else/Not sure 9%
Joe Biden
32%
Elizabeth Warren
21%
Andrew Cuomo
9%
Cory Booker 4%, Kirsten Gillibrand 4%, Martin O'Malley 2%, Brian Schweitzer 1%, Mark Warner 1%, Someone else/Not sure 26%
Elizabeth Warren
30%
Andrew Cuomo
19%
Cory Booker
9%
Martin O'Malley 5%, Kirsten Gillibrand 4%, Brian Schweitzer 2%, Mark Warner 2%, Someone else/Not sure 28%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
WMUR/UNH

Margin of error: ± 6.2%
Sample size: 252

October 7–16, 2013 Hillary Clinton
64%
Joe Biden
6%
Elizabeth Warren
6%
Andrew Cuomo 2%, Deval Patrick 1%, Evan Bayh <1%, Cory Booker <1%, Martin O'Malley <1%, Mark Warner <1%, Kirsten Gillibrand 0%, John Hickenlooper 0%, Other 2%, Unsure 18%
Public Policy Polling

Margin of error: ± 4.6%
Sample size: 455

September 13–16, 2013 Hillary Clinton
57%
Joe Biden
12%
Elizabeth Warren
11%
Cory Booker 4%, Andrew Cuomo 2%, Kirsten Gillibrand 1%, Mark Warner 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Someone else/Not sure 11%
Joe Biden
36%
Elizabeth Warren
20%
Cory Booker
9%
Andrew Cuomo 7%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Brian Schweitzer 1%, Mark Warner 1%, Someone else/Not sure 23%
Elizabeth Warren
33%
Andrew Cuomo
14%
Cory Booker
12%
Kirsten Gillibrand 5%, Martin O'Malley 4%, Mark Warner 2%, Brian Schweitzer 1%, Someone else/Not sure 30%
WMUR/UNH

Margin of error: ± 7.1%
Sample size: 190

July 18–29, 2013 Hillary Clinton
62%
Joe Biden
8%
Deval Patrick
5%
Cory Booker 2%, Andrew Cuomo 1%, Evan Bayh <1%, Kirsten Gillibrand <1%, John Hickenlooper <1%, Martin O'Malley 0%, Mark Warner 0%, Other 2%, Unsure 19%
New England College

Margin of error: ± 5.37%
Sample size: 333

July, 2013 Hillary Clinton
65%
Joe Biden
8%
Jeanne Shaheen
6%
Andrew Cuomo 1.5%, Martin O'Malley 0.6%, Unsure 19%
New England College

Margin of error: ± 5.5%
Sample size: 314

May, 2013 Hillary Clinton
65%
Joe Biden
10%
Elizabeth Warren
5%
Andrew Cuomo 4%, Deval Patrick 3%, Martin O'Malley 0%, Unsure 13%
Public Policy Polling

Margin of error: ± 5.1%
Sample size: 368

April 19–21, 2013 Hillary Clinton
68%
Joe Biden
12%
Elizabeth Warren
5%
Andrew Cuomo 3%, Deval Patrick 2%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 9%
Joe Biden
44%
Elizabeth Warren
12%
Andrew Cuomo
9%
Deval Patrick 9%, Kirsten Gillibrand 2%, Martin O'Malley 1%, Brian Schweitzer 1%, Mark Warner 1%, Someone Else/Undecided 21%
Andrew Cuomo
23%
Elizabeth Warren
22%
Deval Patrick
17%
Kirsten Gillibrand 4%, Martin O'Malley 2%, Brian Schweitzer 1%, Mark Warner 1%, Someone Else/Undecided 30%
WMUR/UNH

Margin of error: ± 7.1%
Sample size: 188

April 4–9, 2013 Hillary Clinton
61%
Joe Biden
7%
Andrew Cuomo
3%
Deval Patrick 3%, Mark Warner 2%, Evan Bayh 1%, Cory Booker 1%, John Hickenlooper 0%, Martin O'Malley 0%, Brian Schweitzer 0%, Antonio Villaraigosa 0%, Someone Else 2%, Undecided 22%
WMUR/UNH

Margin of error: ± 7%
Sample size: 201

Jan. 30–Feb. 5, 2013 Hillary Clinton
63%
Joe Biden
10%
Andrew Cuomo
5%
Cory Booker 2%, Evan Bayh 1%, Deval Patrick 1%, Brian Schweitzer 1%, John Hickenlooper <1%, Martin O'Malley <1%, Antonio Villaraigosa <1%, Mark Warner <1%, Someone Else 1%, Undecided 16%


Delegate count: 126 Pledged, 16 Unpledged Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source Date 1st 2nd Other
Official Primary results June 7, 2016 Hillary Clinton
63.3%
Bernie Sanders
36.7%
CBS/YouGov[268]

Margin of error: ± 5.4%
Sample size: 586

May 31 –
June 3, 2016
Hillary Clinton
61%
Bernie Sanders
34%
Others / Undecided
5%
American Research Group[269]

Margin of error: ± -%
Sample size: 400

May 31 –
June 2, 2016
Hillary Clinton
60%
Bernie Sanders
37%
Others / Undecided
3%
Quinnipiac[270]

Margin of error: ± 3.7%
Sample size: 696

May 10-16, 2016 Hillary Clinton
54%
Bernie Sanders
40%
Others / Undecided
6%
Monmouth University[271]

Margin of error: ± 5.7%
Sample size: 301

May 1-3, 2016 Hillary Clinton
60%
Bernie Sanders
32%
Others / Undecided
8%
Rutgers-Eagleton Poll[272]

Margin of error: ± 6.3%
Sample Size: 292

April 1-8, 2016 Hillary Clinton
51%
Bernie Sanders
42%
Others / Undecided
7%
Rutgers-Eagleton Poll[273]

Margin of error: ± 6.2%
Sample Size: 304

February 6–15, 2016 Hillary Clinton
55%
Bernie Sanders
32%
Others / Undecided
13%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Rutgers-Eagleton Poll[274]

Margin of error: ± ?%
Sample Size: 304

November 30 – December 6, 2015 Hillary Clinton
60%
Bernie Sanders
19%
Martin O'Malley 1% Other 3%, Don't know 17%
Farleigh Dickenson University[275]

Margin of error: ± 3.9%
Sample Size: 830

November 9–15, 2015 Hillary Clinton
64%
Bernie Sanders
27%
Martin O'Malley 2% DK/Refused 3%, Wouldn't Vote 3%, Other 1%
Rutgers-Eagleton Poll[276]

Margin of error: ± 5.7%
Sample size: 367

October 3–10, 2015 Hillary Clinton
49%
Bernie Sanders
19%
Joe Biden
10%
Other 3%, Don't know 20%
Fairleigh Dickinson University[277]

Margin of error: ± 5.5%
Sample size: 345

June 15–21, 2015 Hillary Clinton
63%
Bernie Sanders
15%
Martin O'Malley
3%
Lincoln Chafee 0%, Other 1%, Wouldn't vote 3%, DK/Refused 14%
Fairleigh Dickinson University

Margin of error: ± 5.5%
Sample size: 323

April 13–19, 2015 Hillary Clinton
62%
Another Democratic candidate 9%, Don't know 27%, Refused 1%
Quinnipiac University

Margin of error: ± 4.2%
Sample size: 539

April 9–14, 2015 Hillary Clinton
63%
Elizabeth Warren
12%
Joe Biden
10%
Bernie Sanders 3%, Martin O'Malley 1%, Jim Webb 1%, Lincoln Chafee 0%, Other 1%, Wouldn't vote 3%, Don't know 7%
Joe Biden
36%
Elizabeth Warren
28%
Bernie Sanders
6%
Martin O'Malley 3%, Jim Webb 1%, Lincoln Chafee 0%, Other 1%, Wouldn't vote 4%, Don't know 21%
Quinnipiac University

Margin of error: ± ?
Sample size: ?

January 15–19, 2015 Hillary Clinton
65%
Elizabeth Warren
11%
Joe Biden
7%
Bernie Sanders 3%, Jim Webb 1%, Martin O'Malley 0%, Other 1%, Wouldn't vote 3%, Don't know 11%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Rutgers-Eagleton

Margin of error: ± ?
Sample size: 280

December 3–10, 2014 Hillary Clinton
54%
Elizabeth Warren
6%
Cory Booker
2%
Joe Biden 1%, Martin O'Malley 1%, Other 3%, Don't know 34%
Rutgers-Eagleton

Margin of error: ± ?
Sample size: 331

July 28 – August 5, 2014 Hillary Clinton
59%
Joe Biden
3%
Elizabeth Warren
3%
Cory Booker 2%, Other 4%, Don't know 30%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
Fairleigh Dickinson University

Margin of error: ± 5.3%
Sample size: 337

August 21–27, 2013 Hillary Clinton
63%
Joe Biden
10%
Andrew Cuomo
6%
Elizabeth Warren 4%, Other 4%, Undecided 13%
Kean University

Margin of error: ± ?%
Sample size: 420

April 25–29, 2013 Hillary Clinton
67%
Joe Biden
13%
Andrew Cuomo
8%
Martin O'Malley 2%, Other 4%, Undecided 6%

Delegate count: 34 Pledged, 9 Unpledged Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source Date 1st 2nd Other
Official Primary Results June 7, 2016 Hillary Clinton
51.5%
Bernie Sanders
48.5%
BWD Global[278]

Margin of error: ± 2.5%
Sample size: 1,455

May 25-26, 2016 Hillary Clinton
53%
Bernie Sanders
28%
Others / Undecided
19%
Albuquerque Journal[279]

Margin of error: ± 4.9%
Sample size: 401

February 23–25, 2016 Hillary Clinton
47%
Bernie Sanders
33%
Others / Undecided
20%

Delegate count: 247 Pledged, 44 Unpledged Winner: Hillary Clinton
Primary date: April 19, 2016

Poll source Date 1st 2nd Other
Primary results April 19, 2016 Hillary Clinton
57.5%
Bernie Sanders
41.6%
Void / Blank Votes
0.9%
Emerson College[280]

Margin of error: ± 4.6%
Sample size: 438

April 15-17, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
CBS News/YouGov[281]

Margin of error: ± 4.4%
Sample size: 1,033

April 13-15, 2016 Hillary Clinton
53%
Bernie Sanders
43%
Others / Undecided
4%
NBC/WSJ/Marist[282]

Margin of error: ± 4.0%
Sample size: 591

April 10-13, 2016 Hillary Clinton
57%
Bernie Sanders
40%
Others / Undecided
3%
Quinnipiac[283]

Margin of error: ± 3.3%
Sample size: 860

April 6-11, 2016 Hillary Clinton
53%
Bernie Sanders
40%
Others / Undecided
7%
Gravis Marketing/
One America News[284]

Margin of error: ± 2.9%
Sample size: 1,134

April 5–6, 2016 Hillary Clinton
53%
Bernie Sanders
47%
Siena College[285]

Margin of error: ± 4.5%
Sample size: 538

April 6-11, 2016 Hillary Clinton
52%
Bernie Sanders
42%
Others / Undecided
6%
Monmouth[286]

Margin of error: ± 5.6%
Sample size: 302

April 8-10, 2016 Hillary Clinton
51%
Bernie Sanders
39%
Others / Undecided
10%
PPP[287]

Margin of error: ± 3.8%
Sample size: 663

April 7-10, 2016 Hillary Clinton
51%
Bernie Sanders
40%
Others / Undecided
9%
NBC News/WSJ/Marist[288]

Margin of error: ± 4.2%
Sample size: 557

April 6-10, 2016 Hillary Clinton
55%
Bernie Sanders
41%
Others / Undecided
4%
NY1/Baruch[289]

Margin of error: ± 4.2%
Sample size: 632

April 5-10, 2016 Hillary Clinton
50%
Bernie Sanders
37%
Others / Undecided
13%
Emerson College[290]

Margin of error: ± 5.4%
Sample size: 324

April 6-7, 2016 Hillary Clinton
56%
Bernie Sanders
38%
Others / Undecided
6%
FOX News[291]

Margin of error: ± 3.5%
Sample size: 801

April 4-7, 2016 Hillary Clinton
53%
Bernie Sanders
37%
Others / Undecided
10%
CBS News/YouGov[292]

Margin of error: ± 3.4%
Sample size: 718

March 29- April 1, 2016 Hillary Clinton
53%
Bernie Sanders
43%
Others / Undecided
4%
Quinnipiac[293]

Margin of error: ± 3.7%
Sample size: 693

March 22-29, 2016 Hillary Clinton
54%
Bernie Sanders
42%
Others / Undecided
4%
Emerson College[294]

Margin of error: ± 5.0%
Sample size: 373

March 14-16, 2016 Hillary Clinton
71%
Bernie Sanders
23%
Others / Undecided
6%
Siena College

Margin of error: ± 6.2%
Sample size: 368

February 28–March 3, 2016 Hillary Clinton
55%
Bernie Sanders
34%
Others / Undecided
11%
Siena College

Margin of error: ± 5.6%
Sample size: 434

January 31 – February 3, 2016 Hillary Clinton
55%
Bernie Sanders
34%
Others / Undecided
11%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Siena College

Margin of error: ± 5%
Sample size: 374

September 14–17, 2015 Hillary Clinton
45%
Joe Biden
24%
Bernie Sanders
23%
None of them 4%, Don't know/No opinion 3%
Quinnipiac University[295]

Margin of error: ± 4.4%
Sample size: 508

May 28 – June 1, 2015 Hillary Clinton
55%
Bernie Sanders
15%
Joe Biden
9%
Martin O'Malley 2%, Jim Webb 2%, Lincoln Chafee 1%, Someone else 2%, Wouldn't vote 2%, Undecided 13%
Siena College

Margin of error: ± 6.3%
Sample size: ?

April 19–23, 2015 Hillary Clinton
69%
Someone else 22%
Quinnipiac University

Margin of error: ± 4.3%
Sample size: 521

March 11–16, 2015 Hillary Clinton
51%
Elizabeth Warren
11%
Joe Biden
8%
Andrew Cuomo 7%, Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Other 0%, Wouldn't vote 3%, Undecided 12%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
Marist College

Margin of error: ± 5.7%
Sample size: 294

November 18–20, 2013 Hillary Clinton
64%
Andrew Cuomo
14%
Joe Biden
8%
Elizabeth Warren 6%, Martin O'Malley 3%, Undecided 5%

Delegate count: 107 Pledged, 14 Unpledged Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source Date 1st 2nd 3rd Other
Primary results March 15, 2016 Hillary Clinton
54.5%
Bernie Sanders
40.9%
Others / Uncommitted
4.6%
Public Policy Polling[296]

Margin of error: ± 3.6%
Sample size: 747

March 11–13, 2016 Hillary Clinton
56%
Bernie Sanders
37%
Others / Undecided
7%
High Point University/SurveyUSA[297]

Margin of error: ± 3.8%
Sample size: 669

March 9–10, 2016 Hillary Clinton
58%
Bernie Sanders
34%
Others / Undecided
8%
WRAL/SurveyUSA[298]

Margin of error: ± 3.8%
Sample size: 687

March 4–7, 2016 Hillary Clinton
57%
Bernie Sanders
34%
Others / Undecided
9%
Civitas[299]

Margin of error: ± 4.4%
Sample size: 500

March 3-7, 2016 Hillary Clinton
57%
Bernie Sanders
28%
Others / Undecided
15%
Elon University[300]

Margin of error: ± 3.6%
Sample size: 728

February 15–17, 2016 Hillary Clinton
47%
Bernie Sanders
37%
Others / Undecided 16%
SurveyUSA[301]

Margin of error: ± 4.7%
Sample size: 449

February 14–16, 2016 Hillary Clinton
51%
Bernie Sanders
36%
No Preference 4%, Undecided 9%
Public Policy Polling[302]

Margin of error: ± 4.1
Sample size: 575

February 14–16, 2016 Hillary Clinton
52%
Bernie Sanders
35%
Others / Undecided
13%
High Point[303]

Margin of error: ± 4.5%
Sample size: 478

January 30 – February 4, 2016 Hillary Clinton
55%
Bernie Sanders
29%
Martin O'Malley
1%
Not Sure 15%
Public Policy Polling[304]

Margin of error: ± 4.6%
Sample size: 461

January 18–19, 2016 Hillary Clinton
59%
Bernie Sanders
26%
Martin O'Malley
5%
Not Sure 10%
Civitas[305]

Margin of error: ± 4.4%
Sample size: 500

January 13–16, 2016 Hillary Clinton
53%
Bernie Sanders
28%
Martin O'Malley
2%
Undecided 17%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Public Policy Polling[306]

Margin of error: ± 2.8%
Sample size: 555

December 5–7, 2015 Hillary Clinton
60%
Bernie Sanders
21%
Martin O'Malley
10%
Not Sure 9%
Elon University[307]

Margin of error: ± 4.32%
Sample size: 514

October 29 – November 2, 2015 Hillary Clinton
57%
Bernie Sanders
24%
Martin O'Malley
3%
Other 2% Undecided/DK 13% Refused 0.5%
Public Policy Polling[308]

Margin of error: ± 4.8%
Sample size: 421

October 23–25, 2015 Hillary Clinton
61%
Bernie Sanders
24%
Martin O'Malley
5%
Lawrence Lessig
2%
Public Policy Polling[309]

Margin of error: ± 4.0%
Sample size: 605

September 24–27, 2015 Hillary Clinton
37%
Joe Biden
30%
Bernie
Sanders
17%
Jim Webb 3%, Lincoln Chafee 2%, Martin O'Malley 1%, Lawrence Lessig 0%, Not sure 10%
Elon University[310]

Margin of error: ± 5%
Sample size: 427

September 17–21, 2015 Hillary Clinton
53.40%
Bernie Sanders
23.00%
Jim Webb
1.60%
Lincoln Chafee 0.70%, Lawrence Lessig 0.70%, Martin O'Malley 0.20%, Other 2.10%, Undecided/Don't know 17.10%, Refuse 1.20%
Public Policy Polling[311]

Margin of error: ± 4.5%
Sample size: 477

August 12–16, 2015 Hillary Clinton
55%
Bernie Sanders
19%
Jim Webb
5%
Lincoln Chafee 2%, Martin O'Malley 2%, Lawrence Lessig 1%
Public Policy Polling[312]

Margin of error: ± 5.8%
Sample size: 286

July 2–6, 2015 Hillary Clinton
55%
Bernie Sanders
20%
Jim Webb
7%
Lincoln Chafee 4%, Martin O'Malley 4%, Someone else/Undecided 11%
Public Policy Polling

Margin of error: ± 5.9%
Sample size: 274

May 28–31, 2015 Hillary Clinton
62%
Bernie Sanders
14%
Jim Webb
5%
Lincoln Chafee 4%, Martin O'Malley 4%, Someone else/Undecided 12%
Survey USA

Margin of error: ± 4.7%
Sample size: 442

April 22–27, 2015 Hillary Clinton
56%
Elizabeth Warren
11%
Joe Biden
8%
Martin O'Malley 3%, Bernie Sanders 3%, Jim Webb 3%, Other/Undecided 16%
Public Policy Polling

Margin of error: ± 5.1%
Sample size: 370

April 2–5, 2015 Hillary Clinton
53%
Joe Biden
13%
Elizabeth Warren
11%
Martin O'Malley 5%, Jim Webb 3%, Bernie Sanders 2%, Someone else/Undecided 12%
Civitas Institute

Margin of error: ± 5%
Sample size: 400

March 20–23, 2015 Hillary Clinton
53%
Elizabeth Warren
19%
Joe Biden
9%
Bernie Sanders 5%, Martin O'Malley 2%, Other/Undecided 13%
Public Policy Polling

Margin of error: ± 4.9%
Sample size: 401

February 24–26, 2015 Hillary Clinton
56%
Elizabeth Warren
13%
Joe Biden
11%
Martin O'Malley 3%, Jim Webb 3%, Bernie Sanders 1%, Someone else/Undecided 12%
Public Policy Polling

Margin of error: ± 5%
Sample size: 385

January 29–31, 2015 Hillary Clinton
54%
Joe Biden
18%
Elizabeth Warren
12%
Bernie Sanders 3%, Martin O'Malley 2%, Jim Webb 2%, Someone else/Not sure 10%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Public Policy Polling

Margin of error: ± 5%
Sample size: 381

December 4–7, 2014 Hillary Clinton
52%
Joe Biden
18%
Elizabeth Warren
7%
Bernie Sanders 5%, Andrew Cuomo 4%, Jim Webb 2%, Martin O'Malley 1%, Brian Schweitzer 0%, Someone else/Not sure 10%
Suffolk

Margin of error: ± ?%
Sample size: 254

August 16–19, 2014 Hillary Clinton
57.09%
Joe Biden
14.96%
Elizabeth Warren
9.06%
Martin O'Malley 2.76%, Andrew Cuomo 1.97%, Undecided 11.42%, Refused 2.76%
Civitas Institute

Margin of error: ± ?%
Sample size: 336

July 28–29, 2014 Hillary Clinton
40%
Elizabeth Warren
12%
Joe Biden
9%
Andrew Cuomo 3%, Bernie Sanders 2%, Howard Dean 1%, Jim Webb 1%, Amy Klobuchar 0%, Martin O'Malley 0%, Won't vote in Democratic primary 15%, Undecided 14%, Refused 3%, Other 0%

Delegate count: 18 Pledged, 5 Unpledged Winner: Bernie Sanders
Primary date: June 7, 2016

Poll source Date 1st 2nd Other
Caucus results[313] June 7, 2016 Bernie Sanders
64.2%
Hillary Clinton
25.6%
Others 10.2%

Delegate count: 143 Pledged, 16 Unpledged Winner: Hillary Clinton
Primary date: March 15, 2016

Poll source Date 1st 2nd Other
Primary results March 15, 2016 Hillary Clinton
56.1%
Bernie Sanders
43.1%
Other
0.8%
ARG[314]

Margin of error: ± 5.0%
Sample size: 400

March 12–13, 2016 Hillary Clinton
52%
Bernie Sanders
45%
Others / Undecided
3%
Monmouth[315]

Margin of error: ± 5.6%
Sample size: 302

March 11–13, 2016 Hillary Clinton
54%
Bernie Sanders
40%
Others / Undecided
6%
Quinnipiac[316]

Margin of error: ± 4.2%
Sample size: 543

March 8–13, 2016 Hillary Clinton
51%
Bernie Sanders
46%
Others / Undecided
4%
Public Policy Polling[317]

Margin of error: ± 4.4%
Sample size: 502

March 11–12, 2016 Hillary Clinton
46%
Bernie Sanders
41%
Others / Undecided
13%
CBS News/YouGov[318]

Margin of error: ± 5.3%
Sample size: 777

March 9–11, 2016 Hillary Clinton
52%
Bernie Sanders
43%
Others / Undecided
5%
NBC News/Wall Street Journal/Marist[319]

Margin of error: ± 4.6%
Sample size: 453

March 4–10, 2016 Hillary Clinton
58%
Bernie Sanders
38%
Others / Undecided
4%
Quinnipiac[53]

Margin of error: ± 4.3%
Sample size: 521

March 2–7, 2016 Hillary Clinton
52%
Bernie Sanders
43%
Others / Undecided
5%
Public Polling Policy

Margin of error: ± 4.4%
Sample size: 508

March 4–6, 2016 Hillary Clinton
56%
Bernie Sanders
35%
Others / Undecided
9%
CNN/ORC[320]

Margin of error: ± 5.5%
Sample size: 294

March 2–6, 2016 Hillary Clinton
63%
Bernie Sanders
33%
Others / Undecided
4%
Quinnipiac University

Margin of error: ± 4.3%
Sample size: 518

February 16–20, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
BW Community Research Institute

Margin of error: ± 5%
Sample size: 385

February 11–20, 2016 Bernie Sanders
45%
Hillary Clinton
44%
Others / Undecided
11%
Public Policy Polling

Margin of error: ± ?%
Sample size: 1,138

January 12–14, 2016 Hillary Clinton
53%
Bernie Sanders
37%
Not sure 10%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Quinnipiac University[321]

Margin of error: ± 4.9%
Sample size: 396

September 25 – October 5, 2015 Hillary Clinton
40%
Joe Biden
21%
Bernie Sanders
19%
Undecided 11%
Quinnipiac University[69]

Margin of error: ± 5.2%
Sample size: 353

August 7–18, 2015 Hillary Clinton
47%
Bernie Sanders
17%
Joe Biden
14%
Jim Webb 1%, Martin O'Malley 0%, Lincoln Chafee 0%, Other 3%, Wouldn't vote 6%, Undecided 12%
Quinnipiac University[322]

Margin of error: ± 5%
Sample size: 388

June 4–15, 2015 Hillary Clinton
60%
Joe Biden
13%
Bernie Sanders
10%
Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%, Other 1%, Wouldn't vote 3%, Undecided 11%
Public Policy Polling

Margin of error: ± 5.2%
Sample size: 360

June 4–7, 2015 Hillary Clinton
61%
Bernie Sanders
13%
Michael Bloomberg
7%
Lincoln Chafee 2%, Martin O'Malley 2%, Jim Webb 1%, Not sure 13%
Quinnipiac University

Margin of error: ± 5.4%
Sample size: 324

March 17–28, 2015 Hillary Clinton
54%
Elizabeth Warren
14%
Joe Biden
9%
Martin O'Malley 3%, Bernie Sanders 3%, Jim Webb 2%, Other 1%, Wouldn't vote 3%, Undecided 12%
Joe Biden
34%
Elizabeth Warren
25%
Martin O'Malley
5%
Bernie Sanders 5%, Jim Webb 2%, Other 1%, Wouldn't vote 3%, Undecided 24%
Quinnipiac University

Margin of error: ± 5.5%
Sample size: 315

January 22 – February 1, 2015 Hillary Clinton
51%
Elizabeth Warren
14%
Joe Biden
7%
Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 0%, Other 2%, Wouldn't vote 4%, Undecided 15%
Joe Biden
28%
Elizabeth Warren
24%
Bernie Sanders
7%
Martin O'Malley 2%, Jim Webb 2%, Other 4%, Wouldn't vote 5%, Undecided 28%

Delegate count: 38 Pledged, 4 Unpledged Winner: Bernie Sanders
Primary date: March 1, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary results March 1, 2016 Bernie Sanders
51.9%
Hillary Clinton
41.5%
Others
6.6%
Monmouth[323]

Margin of error: ± 5.7%
Sample size: 300

February 25–28, 2016 Bernie Sanders
48%
Hillary Clinton
43%
Others / Undecided
9%
Sooner Poll/News 9/News on 6[324]

Margin of error: ± 4.3%
Sample size: 510

February 23–25, 2016 Hillary Clinton
40%
Bernie Sanders
31%
Others / Undecided
29%
Public Policy Polling[325]

Margin of error: ± 4.2%
Sample size: 542

February 14–16,
2016
Hillary Clinton
46%
Bernie Sanders
44%
Undecided 9%
Sooner Poll[326]

Margin of error: ± 5.0%
Sample size: 360

February 6–9, 2016 Hillary Clinton
43.9%
Bernie Sanders
28%
Undecided 28.1%
Sooner Poll[327]

Margin of error: ± 5.1%
Sample size: 369

November 12–15, 2015 Hillary Clinton
46.6%
Bernie Sanders
12.2%
Martin O'Malley
2.2%
Undecided 39.1%
The Oklahoman/Cole Hargrave Snodgrass & Associates[328]

Margin of error: ± 4.3%
Sample size: 550

October 19–22, 2015 Hillary Clinton
30%
Bernie Sanders
21%
Martin O'Malley
1%
Undecided 46%

Delegate count: 61 Pledged, 13 Unpledged Winner: Bernie Sanders
Primary date: May 17, 2016

Poll source Date 1st 2nd Other
Official Primary Results[329] May 17, 2016 Bernie Sanders
56.2%
Hillary Clinton
42.1%
Misc.
1.7%
DHM Research[330]

Margin of error: ± 5.6%
Sample size: 901

May 6–9, 2016 Hillary Clinton
48%
Bernie Sanders
33%
Others / Undecided
19%
KATU-TV/SurveyUSA[331]

Margin of error: ± 4.0%
Sample size: 630

March 28-April 1, 2016 Hillary Clinton
37%
Bernie Sanders
36%
Others / Undecided
27%
DHM Research[332]

Margin of error: ± 7%
Sample size: 206

July 22–27, 2015 Hillary Clinton
44%
Bernie Sanders
39%
Others / Undecided
17%

Delegate count: 189 Pledged, 21 Unpledged Winner: Hillary Clinton
Primary date: April 26, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary results April 26, 2016 Hillary Clinton
55.6%
Bernie Sanders
43.5%
Other
0.9%
FOX 29/Opinion Savvy[333]

Margin of error: ± 3.2%
Sample size: 942

April 24, 2016 Hillary Clinton
52%
Bernie Sanders
41%
Others / Undecided
7%
CPEC LLC[334]

Margin of error: ± 2.3%
Sample size: 665

April 22–24, 2016 Hillary Clinton
63%
Bernie Sanders
37%
Public Policy Polling[40]

Margin of error: ± 3.6%
Sample size: 728

April 22–24, 2016 Hillary Clinton
51%
Bernie Sanders
41%
Others / Undecided
9%
American Research Group[335]

Margin of error: ± 5.0%
Sample size: 400

April 21-24, 2016 Hillary Clinton
58%
Bernie Sanders
38%
Others / Undecided
4%
Harper Polling[336]

Margin of error: ± 3.9%
Sample size: 641

April 21-23, 2016 Hillary Clinton
61%
Bernie Sanders
33%
Others / Undecided
6%
CBS/YouGov[337]

Margin of error: ± 6.7%
Sample size: 831

April 20-22, 2016 Hillary Clinton
51%
Bernie Sanders
43%
Others / Undecided
6%
NBC/WSJ/Marist[338]

Margin of error: ± 1.9%
Sample size: 734

April 18-20, 2016 Hillary Clinton
55%
Bernie Sanders
40%
Others / Undecided
5%
Monmouth[339]

Margin of error: ± 5.6%
Sample size: 302

April 17-19, 2016 Hillary Clinton
52%
Bernie Sanders
39%
Others / Undecided
9%
Franklin & Marshall College[340]

Margin of error: ± 5.3%
Sample size: 510

April 11-18, 2016 Hillary Clinton
58%
Bernie Sanders
31%
Others / Undecided
11%
FOX News[341]

Margin of error: ± 3.5%
Sample size: 805

April 4-7, 2016 Hillary Clinton
49%
Bernie Sanders
38%
Others / Undecided
13%
Quinnipiac[342]

Margin of error: ± 4.3%
Sample size: 514

March 30-April 4, 2016 Hillary Clinton
50%
Bernie Sanders
44%
Others / Undecided
6%
Harper[343]

Margin of error: ± 4.0%
Sample size: 603

April 2-3, 2016 Hillary Clinton
55%
Bernie Sanders
33%
Others / Undecided
12%
Franklin & Marshall[344]

Margin of error: ± 4.7%
Sample size: 408

March 14-20, 2016 Hillary Clinton
53%
Bernie Sanders
28%
Others / Undecided
19%
Harper[345]

Margin of error: ± 5.3%
Sample size: 347

March 1-2, 2016 Hillary Clinton
57%
Bernie Sanders
27%
Others / Undecided
16%
Franklin & Marshall College[346]

Margin of error: ± 3.1%
Sample size: 486

February 13–21, 2016 Hillary Clinton
48%
Bernie Sanders
27%
Others / Undecided
25%
Robert Morris University[347]

Margin of error: ± 4.5%
Sample size: 511

February 11–16, 2016 Hillary Clinton
48%
Bernie Sanders
41%
Others / Undecided
11%
Harper[348]

Margin of error: ± 3.8%
Sample size: 640

January 22–23, 2016 Hillary Clinton
55%
Bernie Sanders
28%
Martin O'Malley
4%
Undecided 13%
Franklin & Marshall[349]

Margin of error: ± 3.6%
Sample size: 361

January 18–23, 2016 Hillary Clinton
46%
Bernie Sanders
29%
Martin O'Malley
2%
Other 7%, Undecided 16%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Franklin & Marshall[350]

Margin of error: ± 3.9%
Sample size: 303

October 19–25, 2015 Hillary Clinton
52%
Bernie Sanders
18%
Martin O'Malley
0%
Other 12%, Undecided 18%
Public Policy Polling

Margin of error: ± 4.8%
Sample size: 416

October 8–11, 2015 Hillary Clinton
40%
Bernie Sanders
22%
Joe Biden
20%
Lincoln Chafee 3%, Martin O'Malley 2%, Lawrence Lessig 1%, Jim Webb 1%, Not Sure 12%
Quinnipiac University[69]

Margin of error: ± 4.6%
Sample size: 462

August 7–18, 2015 Hillary Clinton
45%
Bernie Sanders
19%
Joe Biden
17%
Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee 0%, Other 2%, Wouldn't vote 3%, Undecided 12%
Quinnipiac University[322]

Margin of error: ± 4.9%
Sample size: 402

June 4–15, 2015 Hillary Clinton
53%
Joe Biden
15%
Bernie Sanders
10%
Jim Webb 2%, Martin O'Malley 1%, Lincoln Chafee 0%, Other 1%, Wouldn't vote 4%, Undecided 15%
Public Policy Polling

Margin of error: ± 5%
Sample size: 385

May 21–24, 2015 Hillary Clinton
63%
Bernie Sanders
14%
Martin O'Malley
6%
Lincoln Chafee 3%, Jim Webb 3%, Not sure 12%
Quinnipiac University

Margin of error: ± 4.8%
Sample size: 415

March 17–28, 2015 Hillary Clinton
48%
Elizabeth Warren
15%
Joe Biden
13%
Martin O'Malley 1%, Bernie Sanders 1%, Jim Webb 1%, Other 2%, Wouldn't vote 4%, Undecided 15%
Joe Biden
34%
Elizabeth Warren
27%
Martin O'Malley
4%
Bernie Sanders 2%, Jim Webb 1%, Other 3%, Wouldn't vote 5%, Undecided 25%
Quinnipiac University

Margin of error: ± 5%
Sample size: 392

January 22 – February 1, 2015 Hillary Clinton
54%
Elizabeth Warren
12%
Joe Biden
10%
Martin O'Malley 2%, Bernie Sanders 2%, Jim Webb 1%, Other 1%, Wouldn't vote 4%, Undecided 15%
Joe Biden
34%
Elizabeth Warren
21%
Martin O'Malley
5%
Jim Webb 4%, Bernie Sanders 3%, Other 2%, Wouldn't vote 5%, Undecided 26%
Public Policy Polling

Margin of error: ± 4.4%
Sample size: 494

January 15–18, 2015 Hillary Clinton
58%
Joe Biden
13%
Elizabeth Warren
11%
Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Someone else/Undecided 11%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Public Policy Polling

Margin of error: ± 5%
Sample size: 382

May 30 – June 1, 2014 Hillary Clinton
65%
Joe Biden
9%
Andrew Cuomo
5%
Elizabeth Warren 5%, Cory Booker 4%, Kirsten Gillibrand 1%, Brian Schweitzer 1%, Mark Warner 1%, Martin O'Malley 0%, Someone else/Not sure 10%
Franklin & Marshall College

Margin of error: ± 4.3%
Sample size: 524

March 25–31, 2014 Hillary Clinton
55%
Joe Biden
5%
Elizabeth Warren
4%
Andrew Cuomo 2%, Howard Dean 0%, Other 5%, Undecided 29%
Franklin & Marshall College

Margin of error: ± 4.2%
Sample size: 548

February 18–23, 2014 Hillary Clinton
58%
Elizabeth Warren
7%
Joe Biden
6%
Andrew Cuomo 2%, Howard Dean 1%, Other 3%, Undecided 23%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
Public Policy Polling

Margin of error: ± 4.7%
Sample size: 436

November 22–25, 2013 Hillary Clinton
61%
Joe Biden
13%
Elizabeth Warren
11%
Andrew Cuomo 3%, Cory Booker 2%, Kirsten Gillibrand 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 9%

Delegate count: 24 Pledged, 9 Unpledged Winner: Bernie Sanders
Primary date: April 26, 2016

Poll source Date 1st 2nd Other
Certified Primary results April 26, 2016 Bernie Sanders
54.7%
Hillary Clinton
43.1%
Others / Uncommitted
2.2%
Public Policy Polling[40]

Margin of error: ± 3.8%
Sample size: 668

April 22–24, 2016 Bernie Sanders
49%
Hillary Clinton
45%
Others / Undecided
6%
Brown University[351]

Margin of error: ± 4.0%
Sample size: 436

April 19–21, 2016 Hillary Clinton
43%
Bernie Sanders
34%
Others / Undecided
23%
Brown University[352]

Margin of error: ± ?%
Sample size: 394

February 22–23, 2016 Hillary Clinton
49%
Bernie Sanders
40%
Others / Undecided
11%
Brown University[352]

Margin of error: ± ?%
Sample size: 396

February 17–20, 2016 Bernie Sanders
48%
Hillary Clinton
41%
Others / Undecided
11%

Primary Results

Delegate count: 53 Pledged, 6 Unpledged Winner: Hillary Clinton
Primary date: 27 February 2016

Poll source Date 1st 2nd 3rd Other
Official Primary Results February 27, 2016 Hillary Clinton
73.4%
Bernie Sanders
26.0%
Others
0.6%
Clemson[353]

Margin of error: 3.0%
Sample size: 650

February 20–25, 2016 Hillary Clinton
64%
Bernie Sanders
14%
Others / Undecided
22%
Emerson College[354]

Margin of error: 6.0%
Sample size: 266

February 22–24, 2016 Hillary Clinton
60%
Bernie Sanders
37%
Others / Undecided
3%
NBC/WSJ/Marist[355]

Margin of error: 4.8%
Sample size: 425

February 15–17, 2016 Hillary Clinton
60%
Bernie Sanders
32%
Other
8%
Bloomberg Politics[356]

Margin of error: 4.9%
Sample size: 403

February 13–17,
2016
Hillary Clinton
53%
Bernie Sanders
31%
Not sure
16%
ARG[357]

Margin of error: 5%
Sample size: 400

February 14–16, 2016 Hillary Clinton
61%
Bernie Sanders
31%
Someone else 1% No opinion 7%
Public Policy Polling[358]

Margin of error: ± 4%
Sample size: 525

February 14–15, 2016 Hillary Clinton
55%
Bernie Sanders
34%
Undecided 12%
CNN/ORC[359]

Margin of error: 6%
Sample size: 289

February 10–15, 2016 Hillary Clinton
56%
Bernie Sanders
38%
Someone else 3% No opinion 4%
ARG[360]

Margin of error: ± 5.0%
Sample size: 400

February 12–13, 2016 Hillary Clinton
65%
Bernie Sanders
27%
Other 1%, Undecided 7%
YouGov/CBS News[361]

Margin of error: ± 8.7%
Sample size: 404

February 10–12, 2016 Hillary Clinton
59%
Bernie Sanders
40%
No Preference 1%
NBC/WSJ/Marist[362]

Margin of error: ± 4.6%
Sample size: 446

January 17–23, 2016 Hillary Clinton
64%
Bernie Sanders
27%
Martin O'Malley
2%
Undecided 7%
YouGov/CBS News[363]

Margin of error: ± 9.4%
Sample size: 388

January 17–21, 2016 Hillary Clinton
60%
Bernie Sanders
38%
Martin O'Malley
0%
Undecided 2%
SC New Democrats

Margin of error: ± ?%
Sample size: 583

January 12–15, 2016 Hillary Clinton
47%
Bernie Sanders
28%
Martin O'Malley
2%
Undecided 22%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
YouGov/CBS News[364]

Margin of error: ± 5.0%
Sample size: 420

December 13–17, 2015 Hillary Clinton
67%
Bernie Sanders
31%
Martin O'Malley
2%
No Preference 0%
Fox News

Margin of error: ± 5.0%
Sample size: 364

December 5–8, 2015 Hillary Clinton
65%
Bernie Sanders
21%
Martin O'Malley
3%
Other 1%, None of the Above 7%, DK 3%
YouGov/CBS News[140]

Margin of error: ± 6.0%
Sample size: 420

November 15–19, 2015 Hillary Clinton
72%
Bernie Sanders
25%
Martin O'Malley
2%
Undecided 1%
Public Policy Polling[365]

Margin of error: ± 4.9%
Sample size: 400

November 7–8, 2015 Hillary Clinton
72%
Bernie Sanders
18%
Martin O'Malley
5%
Unsure 5%
Monmouth University[366]

Margin of error: ± 4.9%
Sample size: 400

November 5–8, 2015 Hillary Clinton
69%
Bernie Sanders
21%
Martin O'Malley
1%
Other 1% No Preference 8%
Winthrop University[367]

Margin of error: ± 3.4%
Sample size: 832

October 24 – November 1, 2015 Hillary Clinton
71%
Bernie Sanders
15%
Martin O'Malley
2%
Refused 2% Undecided 9% Wouldn't Vote 1%
YouGov/CBS News[368]

Margin of error: ± 8.2%
Sample size: 427

October 15–22, 2015 Hillary Clinton
68%
Bernie Sanders
25%
Martin O'Malley
1%
Jim Webb 1%, Lincoln Chafee 0%, Lawrence Lessig 0%, No preference 4%
Clemson Palmetto[369]

Margin of error: 4.0%
Sample size: 600

October 13–23, 2015 Hillary Clinton
43%
Bernie Sanders
6%
Martin O'Malley
1%
Undecided 50%
CNN/ORC[370]

Margin of error: 5.5%
Sample size: 301

October 3–10, 2015 Hillary Clinton
49%
Joe Biden
24%
Bernie Sanders
18%
Martin O'Malley 3%, Someone else 1%, None/No one 1%, No opinion 4%
Gravis Marketing[371]

Margin of error: ± ?%
Sample size: ?

September 25–27, 2015 Hillary Clinton
50%
Joe Biden
19%
Bernie Sanders
13%
Lincoln Chafee 1%, Jim Webb <1%, Martin O'Malley <1%, Unsure 17%
YouGov/CBS News[260]

Margin of error: ± 6.8%
Sample size: 528

Sep. 3–10, 2015 Hillary Clinton
46%
Bernie Sanders
23%
Joe Biden
22%
No preference 8%, Jim Webb 1%, Lincoln Chafee 0%, Martin O'Malley 0%
Public Policy Polling[372]

Margin of error: ± 5.6%
Sample size: 302

Sep. 3–6, 2015 Hillary Clinton
54%
Joe Biden
24%
Bernie Sanders
9%
Martin O’Malley, Jim Webb 2%; Lincoln Chafee 1%
Gravis Marketing[373]

Margin of error: ± 4.0%
Sample size: 209

July 29–30, 2015 Hillary Clinton
78%
Bernie Sanders
8%
Elizabeth Warren
6%
Joe Biden 6%, Jim Webb 1%, Martin O'Malley 1%, Lincoln Chafee 1%
Morning Consult[374]

Margin of error: ?
Sample size: 309

May 31 – June 8, 2015 Hillary Clinton
56%
Joe Biden
15%
Bernie Sanders
10%
Martin O'Malley 3%, Jim Webb 2%, Lincoln Chafee 1%, Someone else 2% Undecided 11%
Public Policy Polling

Margin of error: ± 6.2%
Sample size: 252

February 12–15, 2015 Hillary Clinton
59%
Joe Biden
18%
Elizabeth Warren
10%
Martin O'Malley 3%, Bernie Sanders 1%, Jim Webb 1%, Other/Undecided 8%
NBC News/Marist

Margin of error: ± 5.2%
Sample size: 352

February 3–10, 2015 Hillary Clinton
65%
Joe Biden
20%
Bernie Sanders
3%
Martin O'Malley 2%, Jim Webb 2%, Undecided 8%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Clemson University

Margin of error: ±6%
Sample size: 400

May 26 – June 2, 2014 Hillary Clinton
50%
Joe Biden
12%
Andrew Cuomo
2%
Martin O'Malley 1%, Deval Patrick 0%, Brian Schweitzer 0%, Undecided/Don't know 35%


Delegate count: 20 Pledged, 5 Unpledged Winner: Hillary Clinton
Primary date: June 7, 2016

Poll source Date 1st 2nd Others / Undecided
Official Primary results June 7, 2016 Hillary Clinton
51.0%
Bernie Sanders
49.0%
Targeted Persuasion[375]

Margin of error: ±3.31%
Sample size: 874

May 23-24, 2016 Hillary Clinton
50%
Bernie Sanders
47%
Undecided
3%

Delegate count: 67 Pledged, 9 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd 3rd Other
Primary results March 1, 2016 Hillary Clinton
66.1%
Bernie Sanders
32.5%
Others / Uncommitted
1.5%
SurveyMonkey[189]

Margin of error: ?
Sample size: 533

February 22–29, 2016 Hillary Clinton
54%
Bernie Sanders
37%
Others / Undecided
9%
NBC/WSJ/Marist[376]

Margin of error: ± 3.8
Sample size: 405

February 22–25, 2016 Hillary Clinton
60%
Bernie Sanders
34%
Other
6%
Public Policy Polling[377]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
58%
Bernie Sanders
32%
Vanderbilt/PSRA

Margin of error: 6.7%
Sample size: 346

November 11–23, 2015 Hillary Clinton
48%
Bernie Sanders
28%
Martin O'Malley
3%
Undecided 10%, Other 5%, Wouldn't Vote 4%
MTSU[378]

Margin of error: ± 4%
Sample size: 603

October 25–27, 2015 Hillary Clinton
44%
Bernie Sanders 16% Don't know 25%

Delegate count: 222 Pledged, 30 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd 3rd Other
Primary results March 1, 2016 Hillary Clinton
65.2%
Bernie Sanders
33.2%
Others
1.6%
Emerson[379]

Margin of error: ± 5.9%
Sample size: 275

February 26–28, 2016 Hillary Clinton
68%
Bernie Sanders
26%
Others / Undecided
6%
American Research Group[380]

Margin of error: ± 5.0%
Sample size: 400

February 26–28, 2016 Hillary Clinton
58%
Bernie Sanders
38%
Others / Undecided
4%
YouGov/CBS News[381]

Margin of error: ± 6.9%
Sample size: 750

February 22–26, 2016 Hillary Clinton
61%
Bernie Sanders
37%
Others / Undecided
2%
Monmouth[382]

Margin of error: ± 5.6
Sample size: 304

February 22–24, 2016 Hillary Clinton
64%
Bernie Sanders
30%
Others / Undecided
6%
Emerson College[383]

Margin of error: ± 5.4
Sample size: 328

February 21–23, 2016 Hillary Clinton
56%
Bernie Sanders
40%
Others / Undecided
4%
NBC News/Wall St. Jrnl[384]

Margin of error: ± 4.9
Sample size: 405

February 18–23, 2016 Hillary Clinton
59%
Bernie Sanders
38%
Others / Undecided
3%
KTVT-CBS 11[385]

Margin of error: ± 3.8
Sample size: 675

February 22, 2016 Hillary Clinton
61%
Bernie Sanders
29%
Others / Undecided
10%
TEGNA/SurveyUSA[386]

Margin of error: ± 4.1
Sample size: 569

February 21–22, 2016 Hillary Clinton
61%
Bernie Sanders
32%
Others / Undecided
7%
Austin American-Statesman[387]

Margin of error: ± 5.0
Sample size: 411

February 19–22, 2016 Hillary Clinton
66%
Bernie Sanders
26%
Others / Undecided
8%
UT/TT[388]

Margin of error: ±4.57
Sample Size: ? Dem Voters

February 12–19, 2016 Hillary Clinton
57%
Bernie Sanders
40%
Rocky de la Fuente
2%
Martin O'Malley 1%
Willie Wilson 1%
Public Policy Polling[389]

Margin of error: ± 4.3
Sample size: 514

February 14–16, 2016 Hillary Clinton
57%
Bernie Sanders
34%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
University of Texas/Texas Tribune[390]

Margin of error ± 4.57%
Sample Size: 459

October 30 – November 8, 2015 Hillary Clinton
61%
Bernie Sanders
30%
Martin O'Malley 1% Lawrence Lessig 0% No Opinion 7%
CBS-DFW[391]

Margin of error: ± 3.09%
Sample size: 1008

October 23–24, 2015 Hillary Clinton
59%
Bernie Sanders
10%
Martin O'Malley
3%
Undecided 28%
Texas Lyceum[392]

Margin of error: ± 7.15%
Sample size: 185

September 8–21, 2015 Hillary Clinton
36%
Bernie Sanders
24%
Joe Biden
15%
Jim Webb 1%, Martin O'Malley 0%, Lincoln Chafee 0% Undecided 23%
UoT/Texas Tribune[393]

Margin of error: ± 4.58%
Sample size: 457

June 5–14, 2015 Hillary Clinton
53%
Bernie Sanders
15%
Joe Biden
8%
Elizabeth Warren 8%, Andrew Cuomo 1%, Martin O'Malley 1%, Jim Webb 1%, Lincoln Chafee 1% Undecided 12%
UoT/Texas Tribune[394]

Margin of error: ± 4.89%
Sample size: 401

February 6–15, 2015 Hillary Clinton
62%
Elizabeth Warren
12%
Joe Biden
6%
Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Undecided 14%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
UoT/Texas Tribune

Margin of error: ± 4.73%
Sample size: 429

October 10–19, 2014 Hillary Clinton
60%
Elizabeth Warren
13%
Joe Biden
10%
Andrew Cuomo 2%, Brian Schweitzer 1%, Jim Webb 1%, Martin O'Malley 0%, Undecided 13%
UoT/Texas Tribune

Margin of error: ± 4.75%
Sample size: 426

May 30 – June 8, 2014 Hillary Clinton
64%
Elizabeth Warren
15%
Joe Biden
8%
Andrew Cuomo 2%, Brian Schweitzer 1%, Martin O'Malley 0%, Undecided 10%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
UoT/Texas Tribune

Margin of error: ± 4.82%
Sample size: 414

October 18–29, 2013 Hillary Clinton
67%
Joe Biden
7%
Elizabeth Warren
5%
Andrew Cuomo 1%, Martin O'Malley 1%, Brian Schweitzer 1%, Mark Warner 1%, Kirsten Gillibrand 0%, Don't Know 17%
UoT/Texas Tribune

Margin of error: ± 5.89%
Sample size: 376

May 31 – June 9, 2013 Hillary Clinton
66%
Joe Biden
11%
Andrew Cuomo
1%
Kirsten Gillibrand 1%, Mark Warner 1%, Martin O'Malley 0%, Brian Schweitzer 0%, Don't Know 19%

Delegate count: 33 Pledged, 4 Unpledged Winner: Bernie Sanders
Caucus date: March 22, 2016

Poll source Date 1st 2nd 3rd Other
Caucus results March 24, 2016 Bernie Sanders
79.21%
Hillary Clinton
20.33%
Other
0.46%
Dan Jones & Associates[395]

Margin of error: ± 7%
Sample size: 250

March 8–15, 2016 Bernie Sanders
52%
Hillary Clinton
44%
Dan Jones & Associates[396]

Margin of error: ± ?
Sample size: 625

February 10–15, 2016 Hillary Clinton
51%
Bernie Sanders
44%
SurveyUSA[397]

Margin of error: ± 7.2%
Sample size: 188

January 6–13, 2016 Hillary Clinton
50%
Bernie Sanders
40%
Other/Undecided 10%
Dan Jones & Associates[398]

Margin of error: ± 3.9%
Sample size: 624

November 5–14, 2015 Hillary Clinton
54%
Bernie Sanders
34%
Martin O'Malley 3% Don't Know 5%
Dan Jones & Associates[399]

Margin of error: ?
Sample size: ?

September 8–17, 2015 Bernie Sanders
31%
Hillary Clinton
30%
Joe Biden
20%
Other/Undecided 19%
Dan Jones & Associates[400]

Margin of error: ± ?
Sample size: ?

July 14–21, 2015 Hillary Clinton
50%
Bernie Sanders
30%
Joe Biden
12%
Other/Undecided 8%
Dan Jones & Associates[401]

Margin of error: ± ?
Sample size: ?

March 3–5, 2015 Hillary Clinton
56%
Elizabeth Warren
25%
Joe Biden
4%
Other/Undecided 15%

Delegate count: 16 Pledged, 10 Unpledged Winner: Bernie Sanders
Primary date: March 1, 2016

Poll source Date 1st 2nd Other
Official Primary results March 1, 2016 Bernie Sanders
85.7%
Hillary Clinton
13.6%
Others / Uncommitted
0.8%
The Castleton Polling Institute [402]

Margin of error: ± 3.27
Sample size: 895

February 3–17, 2016 Bernie Sanders
83.1%
Hillary Clinton
9.0%
Others / Undecided 7.9%
Public Policy Polling[403]

Margin of error: ± 3.7
Sample size: 500

February 14–16, 2016 Bernie Sanders
86%
Hillary Clinton
10%
Castleton University[404]

Margin of error: ± 4%
Sample size: 617

August 24 – September 14, 2015 Bernie Sanders
65%
Hillary Clinton
14%
Others 10%, Not sure 11%
Castleton University[405]

Margin of error: ± 3.8%
Sample size: 653

October 10, 2014 Bernie Sanders
36%
Hillary Clinton
29%
Neither 29%, Not sure 5%, Refused 1%

Delegate count: 95 Pledged, 14 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd Other
Primary results March 1, 2016 Hillary Clinton
64.3%
Bernie Sanders
35.2%
Other 0.5%
SurveyMonkey[189]

Margin of error: ?
Sample size: 908

February 22–29, 2016 Hillary Clinton
57%
Bernie Sanders
36%
Others / Undecided
7%
YouGov/CBS News[406]

Margin of error: 9.2%
Sample size: 471

February 22–26, 2016 Hillary Clinton
59%
Bernie Sanders
39%
Others / Undecided
2%
Monmouth[407]

Margin of error: ± 5.6%
Sample size: 302

February 22–24, 2016 Hillary Clinton
60%
Bernie Sanders
33%
Others / Undecided
7%
Roanoke College[408]

Margin of error: ± 4.8%
Sample size: 415

February 16–24, 2016 Hillary Clinton
50%
Bernie Sanders
33%
Others / Undecided
17%
Public Policy Polling[409]

Margin of error: ± 4.4
Sample size: 500

February 14–16, 2016 Hillary Clinton
56%
Bernie Sanders
34%
Christopher Newport University[410]

Margin of error: ± 4.3%
Sample size: 735

February 3–14, 2016 Hillary Clinton
52%
Bernie Sanders
40%
Others / Undecided
8%
Polls in 2015
Poll source Date 1st 2nd 3rd Other
University of Mary Washington[411]

Registered voters:
Margin of error: ± 3.9%
Sample size: 357
Likely voters:
Margin of error: ± 4.3%
Sample size: 276

November 4–9, 2015 Hillary Clinton
58% (RV)
63% (LV)
Bernie Sanders
32% (RV)
27% (LV)
Martin O'Malley
4% (RV)
5% (LV)
Don't know/None/Refused/Wouldn't vote in that primary
7% (RV)
5% (LV)
Christopher Newport University[412]

Margin of error: ± 5.1%
Sample size: 407

September 29 –October 8, 2015 Hillary Clinton
40%
Bernie Sanders
23%
Joe Biden
23%
Jim Webb 5%, Martin O'Malley 2%, Lincoln Chafee <1%, Someone Else 1%, Undecided/Don't Know/Refused 5%
Public Policy Polling[413]

Margin of error: ± 4.9%
Sample size: 409

July 13–15, 2015 Hillary Clinton
64%
Bernie Sanders
14%
Jim Webb
8%
Lincoln Chafee 5%, Martin O'Malley 2%, Not sure 7%
Christopher Newport University[414]

Margin of error: ± ?
Sample size: ?

April 13–24, 2015 Hillary Clinton
80%
Jim Webb
6%
Joe Biden
5%
Bernie Sanders 2%, Martin O'Malley 1%, Lincoln Chafee<1%, Someone else 2%, Undecided 3%
Christopher Newport University

Margin of error: ± ?
Sample size: ?

January 30 – February 10, 2015 Hillary Clinton
65%
Jim Webb
10%
Joe Biden
8%
Elizabeth Warren 8%, Deval Patrick 2%, Bernie Sanders 2%, Andrew Cuomo 1%, Martin O'Malley 1%, Someone else 1%, Undecided 2%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Christopher Newport University

Margin of error: ± 5%
Sample size: 391

February 23–28, 2014 Hillary Clinton
66%
Joe Biden
19%
Elizabeth Warren
7%
Undecided 9%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
University of Mary Washington

Margin of error: ±?
Sample size: ?

September 25–29, 2013 Hillary Clinton
34%
Mark Warner
16%
Joe Biden
9%
Elizabeth Warren 3%, Andrew Cuomo 2%, Martin O'Malley 1%, None 12%, Don't know 17%
Public Policy Polling

Margin of error: ±5.2%
Sample size: 357

July 11–14, 2013 Hillary Clinton
51%
Joe Biden
14%
Mark Warner
11%
Elizabeth Warren 6%, Cory Booker 4%, Martin O'Malley 3%, Andrew Cuomo 2%, Brian Schweitzer 1%, Kirsten Gillibrand 0%, Someone else/Undecided 8%
Public Policy Polling

Margin of error: ± 4.8%
Sample size: 421

May 24–26, 2013 Hillary Clinton
56%
Joe Biden
14%
Mark Warner
11%
Andrew Cuomo 3%, Elizabeth Warren 3%, Kirsten Gillibrand 1%, Martin O'Malley 1%, Deval Patrick 0%, Brian Schweitzer 0%, Someone else/Undecided 10%
University of Mary Washington

Margin of error: ±?
Sample size: ?

March 20–24, 2013 Hillary Clinton
38%
Mark Warner
18%
Joe Biden
10%
Andrew Cuomo 3%, Martin O'Malley 3%, Other 1%, None 12%, Don't know 12%

Delegate count: 101 Pledged, 17 Unpledged Winner: Bernie Sanders
Caucus date: March 26, 2016

Poll source Date 1st 2nd 3rd Other
Caucus results March 29, 2016 Bernie Sanders
72.72%
Hillary Clinton
27.10%
Other
0.18%
Gravis Marketing[415]

Margin of error: ± 6%
Sample size: 256

May 18–19, 2015 Hillary Clinton
35%
Elizabeth Warren
26%
Bernie Sanders
19%
Joe Biden 4%, Martin O'Malley 3%, Jim Webb 1%, Unsure 12%
Hillary Clinton
45%
Bernie Sanders
36%
Lincoln Chafee
2%
Bill De Blasio 2%, Martin O'Malley 2%, Jim Webb 1%, Unsure 12%
Public Policy Polling[416]

Margin of error: ± 5%
Sample size: 391

May 14–17, 2015 Hillary Clinton
57%
Bernie Sanders
24%
Martin O'Malley
4%
Jim Webb 2%, Lincoln Chafee 1%, Not sure 12%

Delegate count: 29 Pledged, 8 Unpledged Winner: Bernie Sanders
Primary date: May 10, 2016

Poll source Date 1st 2nd 3rd Other
Primary results[417] May 10, 2016 Bernie Sanders
51.4%
Hillary Clinton
35.8%
Paul Farrell
8.9%
Others
3.9%
MetroNews[418]

Margin of error: ±4.0%
Sample size: 315

April 22-May 2, 2016 Bernie Sanders
47%
Hillary Clinton
43%
Undecided 11%
Public Policy Polling[419]

Margin of error: ±3.9%
Sample size: 637

April 29-May 1, 2016 Bernie Sanders
45%
Hillary Clinton
37%
Undecided 18%
West Virginia Veterans/Thirty-Ninth Street Strategies[420]

Margin of error: ±3.9%
Sample size: 600

March 2–6, 2016 Hillary Clinton
44%
Bernie Sanders
31%
Paul Farrell
6%
Keith Judd 1%
Others 7%
Undecided 11%
Orion Strategies[421]

Margin of error: ±5.6%
Sample size: 306

February 20–21, 2016 Bernie Sanders
32%
Hillary Clinton
24%
Undecided 44%
REPASS Research

Margin of error: ±4.9%[422]
Sample size: 411

February 11–16, 2016 Bernie Sanders
57%
Hillary Clinton
29%
Orion Strategies[423]

Margin of error: ±4.9%[424]
Sample size: 306

August 27, 2015 Hillary Clinton
23%
Joe Biden
16%
Bernie Sanders
12%
Undecided 49%
Prism Surveys[425]

Margin of error: ± 3.21%
Sample size: 900

August 21, 2015 Hillary Clinton
36%
Bernie Sanders
32%
Undecided 32%

Delegate count: 86 Pledged, 10 Unpledged Winner: Bernie Sanders
Primary date: April 5, 2016

Poll source Date 1st 2nd 3rd Other
Official Primary Results April 5, 2016 Bernie Sanders
56.6%
Hillary Clinton
43.1%
Others / Uncommitted
0.4%
ARG[426]

Margin of error: ± 5.0%
Sample size: 400

April 1–3, 2016 Hillary Clinton
49%
Bernie Sanders
48%
Others / Undecided
3%
Emerson[427]

Margin of error: ± 4.2%
Sample size: 542

March 30 – April 3, 2016 Bernie Sanders
51%
Hillary Clinton
43%
Others / Undecided
6%
CBS News/YouGov[428]

Margin of error: ± 3.7%
Sample size: 653

March 29 – April 1, 2016 Bernie Sanders
49%
Hillary Clinton
47%
Others / Undecided
4%
FOX Business[429]

Margin of error: ± 3.0%
Sample size: 860

March 28–30, 2016 Bernie Sanders
48%
Hillary Clinton
43%
Others / Undecided
10%
Loras College[430]

Margin of error: ± 4.8%
Sample size: 416

March 28–29, 2016 Hillary Clinton
47%
Bernie Sanders
41%
Others / Undecided
12%
Public Policy Polling[431]

Margin of error: ± 3.7%
Sample size: 720

March 28–29, 2016 Bernie Sanders
49%
Hillary Clinton
43%
Others / Undecided
8%
MULaw Poll[432]

Margin of error: ± 6.3%
Sample size: 405

March 24–28, 2016 Bernie Sanders
49%
Hillary Clinton
45%
Others / Undecided
6%
Emerson College[433]

Margin of error: ± 4.6%
Sample size: 439

March 20–22, 2016 Hillary Clinton
50%
Bernie Sanders
44%
Others / Undecided
6%
MULaw Poll[434]

Margin of error: ± 6.9%
Sample size: 343

February 18–21, 2016 Bernie Sanders
44%
Hillary Clinton
43%
Others / Undecided
13%
MULaw Poll[435]

Margin of error: ± 6.5%
Sample size: 312

January 21–24, 2016 Hillary Clinton
45%
Bernie Sanders
43%
Martin O'Malley
1%
Not Reported
Polls in 2015
Poll source Date 1st 2nd 3rd Other
Marquette Law School[436]

Margin of error: ± 6.1%
Sample size: 374

November 12–15, 2015 Hillary Clinton
50%
Bernie Sanders
41%
Martin O'Malley
2%
Undecided 7%
St. Norbert College[437]

Margin of error: ± 6%
Sample size: ?

October 14–17, 2015 Hillary Clinton
35%
Bernie Sanders
33%
Joe Biden
21%
Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%, Not Sure 10%
Hillary Clinton
47%
Bernie Sanders
42%
Martin O'Malley 1%, Lincoln Chafee 1%, Jim Webb <1%, Not Sure 7%
Marquette University[438]

Margin of error: ± 5.9%
Sample size: 394

September 24–28, 2015 Hillary Clinton
42%
Bernie Sanders
30%
Joe Biden
17%
Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 0%
Marquette University[439]

Margin of error: ± 6.1%
Sample size: 396

August 13–16, 2015 Hillary Clinton
44%
Bernie Sanders
32%
Joe Biden
12%
Lincoln Chafee 1%, Martin O'Malley 1%, Jim Webb 1%
Marquette University[440]

Margin of error: ± 5.1%
Sample size: 391

April 7–10, 2015 Hillary Clinton
58.2%
Elizabeth Warren
14.3%
Joe Biden
12%
Martin O'Malley 0.9%, Jim Webb 0.9%, Someone else 3.7%, Don't know 8.9%
Public Policy Polling

Margin of error: ± 4.4%
Sample size: 504

March 6–8, 2015 Hillary Clinton
60%
Joe Biden
14%
Elizabeth Warren
12%
Bernie Sanders 5%, Martin O'Malley 1%, Jim Webb 1%, Other/Undecided 7%
Polls in 2014
Poll source Date 1st 2nd 3rd Other
Public Policy Polling

Margin of error: ± 4.1%
Sample size: 579

April 17–20, 2014 Hillary Clinton
57%
Russ Feingold
19%
Joe Biden
8%
Elizabeth Warren 5%, Cory Booker 1%, Andrew Cuomo 1%, Mark Warner 1%, Kirsten Gillibrand 0%, Martin O'Malley 0%, Someone else/Not sure 8%
Polls in 2013
Poll source Date 1st 2nd 3rd Other
Marquette University

Margin of error: ± 5%
Sample size: 392

October 21–27, 2013 Hillary Clinton
64%
Elizabeth Warren
10.8%
Joe Biden
10.6%
Andrew Cuomo 1.9%, Martin O'Malley 0.8%, Someone else 2.1%, Don't know 9.2%
Public Policy Polling

Margin of error: ± 4.6%
Sample size: 449

September 13–16, 2013 Hillary Clinton
50%
Russ Feingold
20%
Joe Biden
11%
Elizabeth Warren 4%, Cory Booker 3%, Andrew Cuomo 2%, Kirsten Gillibrand 0%, Martin O'Malley 0%, Mark Warner 0%, Someone else/Not sure 9%
Marquette University

Margin of error: ± 5.5%
Sample size: 333

May 6–9, 2013 Hillary Clinton
61.5%
Joe Biden
13%
Elizabeth Warren
4.8%
Andrew Cuomo 4.2%, Deval Patrick 1.5%, Martin O'Malley 1.1%, Mark Warner 0.7%, Someone else 1.5%, Don't Know 11%
Public Policy Polling

Margin of error:
Sample size:

February 21–24, 2013 Hillary Clinton
50%
Russ Feingold
25%
Joe Biden
11%
Andrew Cuomo 3%, Elizabeth Warren 2%, Martin O'Malley 1%, Deval Patrick 1%, Brian Schweitzer 0%, Mark Warner 0%, Someone Else/Undecided 8%

Delegate count: 14 Pledged, 4 Unpledged Winner: Bernie Sanders
Caucus date: April 9, 2016

Poll source Date 1st 2nd
Caucus results March 5, 2016 Bernie Sanders
55.7%
Hillary Clinton
44.3%

No polls were conducted for the Wyoming Democratic caucuses.

District/territories

[edit]

Delegate count: 6 Pledged, 5 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd Other
Caucus results[441] March 1, 2016 Hillary Clinton
68.4%
Bernie Sanders
25.7%
Other
6.0%

Delegate count: 20 Pledged, 26 Unpledged Winner: Hillary Clinton
Primary date: June 14, 2016

Poll source Date 1st 2nd Other
Primary results[442] June 14, 2016 Hillary Clinton
78.7%
Bernie Sanders
21.1%
Other
0.2%

Delegate count: 7 Pledged, 5 Unpledged Winner: Hillary Clinton
Primary date: May 7, 2016

Poll source Date 1st 2nd Other
Caucus results[443] May 7, 2016 Hillary Clinton
59.5%
Bernie Sanders
40.5%

Delegate count: 6 Pledged, 5 Unpledged Winner: Hillary Clinton
Primary date: March 1, 2016

Poll source Date 1st 2nd Other
Caucus results[444] March 12, 2016 Hillary Clinton
54.0%
Bernie Sanders
34.4%
Other
11.6%

Delegate count: 60 Pledged, 7 Unpledged Winner: Hillary Clinton
Primary date: June 5, 2016

Poll source Date 1st 2nd Other
Primary results[445] June 5, 2016 Hillary Clinton
60.0%
Bernie Sanders
38.0%
Others 2.0%
Pasquines Polls[446]

Margin of error: ±%
Sample size: 249

May 23–30, 2016 Hillary Clinton
64%
Bernie Sanders
30%
Others / Undecided
6%

Delegate count: 7 Pledged, 5 Unpledged Winner: Hillary Clinton
Caucus date: June 4, 2016

Poll source Date 1st 2nd Other
Caucus results[447] June 4, 2016 Hillary Clinton
84.2%
Bernie Sanders
12.2%

See also

[edit]

General election polling

Democratic primary polling

Republican primary polling

Notes

[edit]

References

[edit]
  1. ^ "Alabama and Oklahoma: Trump Leads in Both, Clinton Leads in Al, Sanders in OK" (PDF).
  2. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  3. ^ Albrecht, Peter (12 August 2015). "Alabama Republicans Favor Trump By Wide Margin". wkrg.com.
  4. ^ a b "ADN poll: Alaskans like Trump, Sanders for president". 23 January 2016.
  5. ^ "New Arizona poll: Trump, Clinton lead but ample undecideds". March 15, 2016. Retrieved March 15, 2016.
  6. ^ "Clinton dusting Sanders in Arizona poll". February 29, 2016.
  7. ^ "Hillary Clinton Bests Bernie Sanders in Test Presidential Election by 47% to 19%" (PDF). November 19, 2015.
  8. ^ "Arizona Polling Results" (PDF). One America News. Retrieved 2015-08-20.
  9. ^ "Clinton Closely Matched With Most Republicans in Arizona" (PDF). Publicpolicypolling.com. Retrieved 2015-07-11.
  10. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  11. ^ "Poll: Hillary Clinton, Ted Cruz hold leads in Democratic, GOP Presidential primaries". Retrieved February 7, 2016.
  12. ^ "Arkansas September Toplines" (PDF). Suffolk.edu. Retrieved 2015-07-11.
  13. ^ Goodman, Alana. "Tom Cotton in Dead Heat with Mark Pryor for Arkansas Senate". The Washington Free Beacon.
  14. ^ "Poll: Hillary Clinton, Bernie Sanders down to the wire in California". www.cbsnews.com. Retrieved 2016-06-07.
  15. ^ "California 2016 Primary Forecasts". ARG. 12 January 2016. Retrieved June 7, 2016.
  16. ^ "NBC News/WSJ/Marist Poll June 2016 California Questionnaire". scribd.com. Retrieved June 1, 2016.
  17. ^ "California's Democratic Presidential Primary Tightening. Clinton's Lead Over Sanders Declines to Two Points. State Republicans Appear to Be Warming to Trump's Candidacy". Archived from the original on June 2, 2016. Retrieved June 2, 2016.
  18. ^ "NBC News/WSJ/Marist Poll June 2016 California Questionnaire". scribd.com. Retrieved June 3, 2016.
  19. ^ "Hillary Clinton poised to defeat Bernie Sanders in California's presidential primary, SurveyUSA poll shows". ABC News. Retrieved 23 May 2016.
  20. ^ "Californians and Their Government May 2016 Full Crosstabs – Likely Voters Only" (PDF). PPIC Statewide Survey. Retrieved 26 May 2016.
  21. ^ "Poll: Clinton up 13 over Sanders in Calif". 31 May 2016. Retrieved May 31, 2016.
  22. ^ "Capitol Weekly California Statewide Dem Primary April 28-May 1, 2016" (PDF). Retrieved May 4, 2016.
  23. ^ "California voters resigned to vote for Donald Trump vs. Hillary Clinton, SurveyUSA poll shows". Retrieved May 2, 2016.
  24. ^ "Fox News Poll: California Presidential Primaries". Fox News. April 22, 2016. Archived from the original on April 23, 2016. Retrieved April 22, 2016.
  25. ^ "Poll: Clinton keeps New York edge, leads Sanders in California". CBS News. Retrieved 2016-04-17.
  26. ^ "California Democratic Primary Polling". Retrieved 2016-04-20.
  27. ^ "Sanders gaining on Clinton in California poll". Retrieved 2016-04-08.
  28. ^ In CA, 47% of Registered Voters and 15% of Likely GOP Primary Voters Have 'Extremely Negative' View of Trump; Still He Leads Cruz Narrowly; Clinton Atop Sanders in Democrat Primary; Harris & Sanchez Likely To Advance for Boxer's Seat; CA's Vital 55 Electoral Votes Stay Blue in 2016 (Report). SurveyUSA. 2016-04-05. Retrieved 2016-04-05.
  29. ^ "As California primary nears, even Sanders supporters are uniting behind Clinton and against a common enemy: Trump". Los Angeles Times. 28 March 2016. Retrieved 2016-03-29.
  30. ^ "Californians and Their Government - March 2016 Full Crosstabs - Likely Voters Only" (PDF). Retrieved 2016-03-24.
  31. ^ DiCamillo, Mark (6 January 2016). "Clinton Maintains 11-Point Lead Over Sanders Among Likely Voters in California's Democratic Presidential Primary. Both Candidates Are Highly Regarded" (PDF). Field Research Corporation. Archived from the original (PDF) on 16 January 2016. Retrieved 22 January 2016.
  32. ^ "Sanders gains on Clinton". sacbee.com. Archived from the original on 2015-10-10. Retrieved 2015-10-07.
  33. ^ "Trump and Clinton lead presidential contenders in California". news.usc.edu/. Retrieved 2015-09-13.
  34. ^ "Field Poll Online" (PDF). field.com. Archived from the original (PDF) on 2015-05-28. Retrieved 2015-07-09.
  35. ^ "2016 California Presidential Republican Primary – Bush 17%, Walker 17%". Emerson College. Archived from the original on 7 November 2016. Retrieved 22 January 2016.
  36. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2015-02-20. Retrieved 2015-02-19.{{cite web}}: CS1 maint: archived copy as title (link)
  37. ^ "Free Beacon Poll: Sanders Overtakes Clinton in Colorado".
  38. ^ "Quinnipiac poll" (PDF).
  39. ^ "Suffolk" (PDF). suffolk.edu. Retrieved 2015-07-09.
  40. ^ a b c "Clinton, Sanders close in CT/PA/RI; Trump Headed for Big Wins" (PDF). Public Policy Polling. April 25, 2016. Retrieved April 25, 2016.
  41. ^ "TRUMP LEADS, KASICH TOPS CRUZ IN CONNECTICUT GOP RACE, QUINNIPIAC UNIVERSITY POLL FINDS; WOMEN, BLACKS GIVE CLINTON LEAD AMONG DEMOCRATS" (PDF). Retrieved 2016-04-20.
  42. ^ "TRUMP COULD SWEEP CONNECTICUT; SANDERS IN STRIKING DISTANCE; KASICH BEATS BERNIE, HILLARY" (PDF). Retrieved 2016-04-12.
  43. ^ "Emerson College Poll" (PDF). Emerson College Polling Society. Retrieved 2015-11-18.
  44. ^ "Release Detail". Quinnipiac University. Retrieved 2015-10-13.
  45. ^ "Release Detail". Quinnipiac University. Retrieved 2015-07-09.
  46. ^ "ARG Florida Poll March 11-13, 2016".
  47. ^ "March 14, 2016 - Trump Tops Rubio In Florida, Ties Kasich In Ohio, Quinnipiac University Poll Finds; Clinton Leads Sanders In Two Critical Primaries".
  48. ^ "Midwestern States a Toss Up Tuesday" (PDF).
  49. ^ "Poll: Trump and Kasich neck-and-neck in Ohio; Trump leads in Florida".
  50. ^ "Poll: Marco Rubio, Ted Cruz split anti-Donald Trump vote in Florida".
  51. ^ "Polls: Trump Ahead in Florida, Illinois; Kasich Leads in Ohio".
  52. ^ "Poll: Rubio closing in on Trump in Florida".
  53. ^ a b "WOMEN DRIVE CLINTON TO 2-1 LEAD AMONG FLORIDA DEMS, QUINNIPIAC UNIVERSITY POLL FINDS; SHE HAS 9-POINT LEAD IN OHIO" (PDF).
  54. ^ "Exclusive Florida Decides Poll: Trump, Clinton lead Florida's presidential primaries".
  55. ^ "CNN/ORC Poll: Trump, Clinton leading in Florida, Ohio".
  56. ^ "Washington Post-Univision News Florida Democratic primary survey March 2016". The Washington Post. Retrieved March 10, 2016.
  57. ^ "Minority voters help Clinton dominate Sanders in Florida poll". Politico Florida. Retrieved February 29, 2016.
  58. ^ "Trump Leads Rubio in Florida- Even Head to Head" (PDF). Public Polling Policy. Retrieved February 26, 2016.
  59. ^ "Florida Polling Results". One America News Network. Retrieved March 5, 2016.
  60. ^ "WOMEN GIVE CLINTON BIG LEAD AMONG FLORIDA DEMOCRATS, QUINNIPIAC UNIVERSITY POLL FINDS; YOUNG VOTERS GO TO SANDERS" (PDF). Quinnipiac. Retrieved February 26, 2016.
  61. ^ "The Florida Southern College Center for Polling and Policy Research" (PDF). Quinnipiac University. February 6, 2016.
  62. ^ a b "Polls". FAU College of Business. Retrieved 22 January 2016.
  63. ^ "Florida Decides Poll: Trump dominates among Florida voters". baynews9.com.
  64. ^ "Polling Institute at Saint Leo University – Ben Carson Nearly Ties with Frontrunner Trump Nationally Among Likely GOP Voters, while Jeb Bush Trails, Nationally and in Florida". Polling Institute at Saint Leo University.
  65. ^ "2016 Presidential Swing State Polls Poll". Quinnipiac University. October 7, 2015.
  66. ^ "Florida Down on Bush, Rubio Campaigns" (PDF). Public Policy Polling. 15 September 2015.
  67. ^ "Florida Poll (September 12, 2015)3 (2)". Scribd.
  68. ^ "Poll: Hillary Clinton, Donald Trump lead in Florida". Retrieved 2015-09-06.
  69. ^ a b c "Quinnipiac poll" (PDF). Quinnipiac.edu. Retrieved 2015-08-20.
  70. ^ "Florida Statewide Democratic Primary Election survey" (PDF). Retrieved 2015-07-30.
  71. ^ "BUSH TOP CHOICE OF STATE GOP VOTERS RUBIO DROPS, WALKER RUNS 3RD – AHEAD OF TRUMP, CLINTON HAS WIDE LEAD AMONG DEMOCRATS". Retrieved 2015-07-24.
  72. ^ "Current Democratic and Republican Polling in Florida – Gravis". Retrieved 2015-07-09.
  73. ^ http://www.quinnipiac.edu/images/polling/ps/ps06182015_Sk32gth.pdf
  74. ^ Quinnipiac University. "2016 Presidential Swing State Polls Poll – April 2, 2015 – Bush Slips In Florida, Stalls – Quinnipiac University Connecticut". QU Poll.
  75. ^ http://www.publicpolicypolling.com/pdf/2015/PPP_Release_FL_32415.pdf
  76. ^ "Gravis Insights Florida Political Primary Poll Republican and Democrat". Gravis.
  77. ^ Quinnipiac University. "2016 Presidential Swing State Polls Poll – – – Quinnipiac University Connecticut". QU Poll.
  78. ^ Quinnipiac University. "Florida (FL) Poll – July 24, 2014 – Obama In Slump, But Clinton Sc – Quinnipiac University Connecticut". QU Poll.
  79. ^ http://www.publicpolicypolling.com/pdf/2014/PPP_Release_FL_611.pdf
  80. ^ Quinnipiac University. "Florida (FL) Poll – May 1, 2014 – Jeb Bush Is Top Dog In Florida – Quinnipiac University Connecticut". QU Poll.
  81. ^ Quinnipiac University. "Florida (FL) Poll – January 31, 2014 – Bridgegate Drives Christie To – Quinnipiac University Connecticut". QU Poll.
  82. ^ Quinnipiac University. "Florida (FL) Poll – November 22, 2013 – Jeb Bush, Clinton Tops In Flor – Quinnipiac University Connecticut". QU Poll.
  83. ^ "Trump's Lead Looks Steady in Run-Up to Super Tuesday".
  84. ^ "POLL: Trump, Clinton widen leads ahead of Super Tuesday".
  85. ^ "Landmark/RosettaStone Poll 800 Likely Georgia Democratic Voters" (PDF).
  86. ^ "CBS News 2016 Battleground TrackerGeorgia".
  87. ^ "WABE Poll: Hillary Clinton Has Commanding Support Among Ga. Democratic Voters".
  88. ^ "Poll: Results of SurveyUSA Election Poll #22709" (PDF).
  89. ^ "Poll: Georgia Democratic Presidential Primary Poll" (PDF).
  90. ^ "NBC News/WSJ/Marist Poll" (PDF).
  91. ^ "Poll: Cruz, Rubio in fight for second, Clinton with huge primary lead".
  92. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  93. ^ "EXCLUSIVE POLL: Georgia wants Trump as president". 11Alive. 2 November 2015.
  94. ^ "Trump, Clinton still in lead in Georgia, but leads are shrinking, poll shows". The Florida Times-Union. Retrieved 2015-09-04.
  95. ^ Bernick. "Poll: Trump Leads in Idaho Ahead of Tuesday's Primary". idahopoliticsweekly.com.
  96. ^ Bryan. "Idaho Democrats Pick Clinton; Republicans Still Undecided". idahopoliticsweekly.com.
  97. ^ "ID Politics Weekly". Idaho Politics Weekly. Retrieved 2015-10-15.
  98. ^ "Donald Trump, Jeb Bush Lead GOP Field in Idaho". Idaho Politics Weekly. Retrieved 2015-08-10.
  99. ^ Bryan. "Jeb Bush, Hillary Clinton Lead 2016 Presidential Contenders in the Gem State". idahopoliticsweekly.com.
  100. ^ "ANALYSIS: 2016 Illinois Democratic Primary" (PDF).
  101. ^ "Midwestern States a Toss Up Tuesday" (PDF).
  102. ^ "Poll: Trump and Kasich neck-and-neck in Ohio; Trump leads in Florida".
  103. ^ "Polls: Trump Ahead in Florida, Illinois; Kasich Leads in Ohio".
  104. ^ "Illinois Democratic Presidential Primary March 8".
  105. ^ "Clinton holds commanding lead over Sanders in Illinois". Retrieved 2016-03-08.
  106. ^ "Illinois Democratic Presidential Primary".
  107. ^ "Simon Poll: Clinton, Trump Lead in Illinois" (PDF).
  108. ^ "Poll: Clinton Lead in Illinois Over Sanders Slips".
  109. ^ "Kirk Unpopular, Trails Duckworth" (PDF). Public Policy Polling. Retrieved 2015-07-29.
  110. ^ Official Primary Results
  111. ^ "American Research Group, Inc". Retrieved 2016-04-29.
  112. ^ "NBC News/WSJ/Marist Poll May 2016 Indiana Questionnaire" (PDF). Archived from the original (PDF) on 2016-05-08. Retrieved 2016-05-02.
  113. ^ "1) Cruz Ahead in Indiana 2) Clinton Leads 3) Young Edging Stutzman but Many Yet to Decide" (PDF). Retrieved 2016-04-30.
  114. ^ "IPFW poll: Hoosiers like Clinton". Retrieved 2016-04-29.
  115. ^ "Poll: Donald Trump, Hillary Clinton lead in Pennsylvania, Indiana". CBS News. 24 April 2016. Retrieved 2016-04-24.
  116. ^ "Fox News Poll: Indiana Presidential Primaries". Fox News. April 22, 2016. Retrieved April 22, 2016.
  117. ^ "Exclusive WTHR/HPI Poll: Trump, Clinton have small leads in Indiana, overall tight race". WTHR News. April 22, 2016. Archived from the original on April 23, 2016. Retrieved April 22, 2016.
  118. ^ "TRUMP BY A NOSE OVER CRUZ; RUBIO GAINS MOMENTUM AND CLINTON MAINTAINS LEAD OVER SANDERS" (PDF). Emerson College Polling Society. 1 February 2016. Retrieved 5 February 2016.
  119. ^ "FIRST-TIMERS PUT TRUMP AHEAD IN IOWA GOP CAUCUS, QUINNIPIAC UNIVERSITY POLL FINDS; SANDERS NEEDS FIRST-TIMERS TO TIE CLINTON IN DEM CAUCUS" (PDF). Quinnipiac University Poll. 1 February 2016. Retrieved 5 February 2016.
  120. ^ Eller, Donnelle; Jacobs, Jennifer (30 January 2016). "Clinton keeps slim edge over Sanders in latest Iowa Poll". The Des Moines Register. Retrieved 5 February 2016.
  121. ^ "NBC News/WSJ/Marist Poll" (PDF). MSNBC. 28 January 2016. Retrieved 5 February 2016.
  122. ^ "Iowa Polling Results". OAN. Retrieved 5 February 2016.
  123. ^ "IOWA: CLINTON CLINGS TO CAUCUS LEAD" (PDF). Monmouth University Poll. 28 January 2016. Retrieved 5 February 2016.
  124. ^ "Iowa". American Research Group, Inc. Retrieved 5 February 2016.
  125. ^ "Sanders-Clinton Close Race Frozen In Iowa, Quinnipiac University Poll Finds; Men, Very Liberals, Young Voters Back Sanders". Quinnipiac University. Retrieved 2016-01-27.
  126. ^ "Clinton, Cruz Lead Among Iowa Caucusgoers in WHO-HD, Iowa State University Poll". WHO TV. 25 January 2016. Retrieved 5 February 2016.
  127. ^ "Fox News Poll: Sanders narrows gap in Iowa". Fox News. Retrieved 5 February 2016.
  128. ^ Salvanto, Anthony; Backus, Fred; De Pinto, Jennifer; Dutton, Sarah (January 24, 2016). "Poll: Sanders edges Clinton in Iowa, leads big in New Hampshire". CBS News. Retrieved January 24, 2016.
  129. ^ Dinan, Conor (21 January 2016). "Emerson Poll: Clinton Ahead Of Sanders In Iowa By 9 Points". Talking Points Memo. Retrieved 22 January 2016.
  130. ^ "Iowa CNN/ORC poll: Full results". cnn.com. 21 January 2016. Retrieved 22 January 2016.
  131. ^ "Iowa Democratic Caucus Poll Prepared for Monmouth College and KBUR-AM" (PDF). Retrieved 22 January 2016.
  132. ^ "Loras College – 2016 – Clinton Maintains Lead, New Loras College Poll Finds". Loras.edu. 2014-12-06. Retrieved 2016-01-23.
  133. ^ "Iowa Democratic Presidential Caucus" (PDF). Public Policy Polling. Retrieved 2016-01-12.
  134. ^ "Sanders, Clinton Going Down to the Wire, Iowa Poll Shows". Bloomberg. Retrieved 2016-01-14.
  135. ^ "Iowa Democratic Presidential Caucus" (PDF). American Research Group. Retrieved 2016-01-11.
  136. ^ "Sander Surges In Iowa Democratic Caucus". Quinnipiac University. Retrieved 2016-01-12.
  137. ^ Brown, S. Kathi (January 2016). "Likely Iowa Caucus Voters' Attitudes toward Social Security". AARP Research. Retrieved 5 February 2016.
  138. ^ "NBC News/WSJ/Marist Poll January 2016 Iowa Questionnaire" (PDF). msnbcmedia.msn.com. Retrieved 2015-01-10.
  139. ^ "Gravis Iowa Caucus Republican and Democrat Public Opinion Poll". Gravis Marketing. 23 December 2015. Retrieved 22 January 2016.
  140. ^ a b c "CBS News 2016 Battleground Tracker Iowa" (PDF).
  141. ^ "Trump Edges Cruz in Iowa; His Supporters Think Japanese Internment Was Good; Clinton Still Well Ahead of Sanders In State". Public Policy Polling. Retrieved 23 December 2015.
  142. ^ "Iowa (IA) Poll". QU Poll. December 15, 2015. Retrieved 23 December 2015.
  143. ^ "Fox News Poll: Cruz, Clinton lead in Iowa". Fox News. Retrieved 23 December 2015.
  144. ^ "Loras College – 2015 – Clinton Remains with Strong Lead, New Loras College Poll Finds". Loras.edu. 2015-12-15. Retrieved 2015-12-27.
  145. ^ "Bloomberg Politics/Des Moines Register Iowa Poll". Selzer & Company. December 2015. Retrieved 22 January 2016.
  146. ^ a b "Iowa Democratic Presidential Caucus". realclearpolitics.com. Retrieved 2015-12-09.
  147. ^ "Iowa (IA) Poll – November 25, 2015 – Clinton Leads Iowa Dem Caucus, | Quinnipiac University Connecticut". Quinnipiac.edu. 2015-11-25. Retrieved 2015-12-27.
  148. ^ "Election 2016: Hillary Clinton extends Iowa lead, maintains SC lead, narrows gap in NH". 23 November 2015.
  149. ^ "Iowa" (PDF). CNN/ORC. 6 November 2015. Retrieved 22 January 2016.
  150. ^ "RCP IA poll" (PDF). November 2, 2015.
  151. ^ "Cruz rising in Iowa; Clinton back out to dominant lead" (PDF). November 2, 2015.
  152. ^ "KBUR Dem poll" (PDF).
  153. ^ "Iowa Democratic Caucus Poll – October, 2015" (PDF). Douglas Fulmer and Associates. October 2015. Retrieved 22 January 2016.
  154. ^ "Iowa: Clinton has Huge Caucus Lead" (PDF). Monmouth University Poll. 27 October 2015. Retrieved 22 January 2016.
  155. ^ "CBS News 2016 Battleground Tracker Iowa" (PDF). YouGov. Retrieved 22 January 2016.
  156. ^ "Iowa Poll: Clinton up by 7, but gap tightens". Des Moines Register. 22 October 2015.
  157. ^ "NBC News/WSJ/Marist Poll October 2015 Iowa Questionnaire". Retrieved 2015-10-04.
  158. ^ "Trump Continues To Lead in Iowa; Clinton in Good Shape" (PDF). Public Policy Polling. 22 September 2015. Retrieved 22 January 2016.
  159. ^ "CBS News 2016 Battleground Tracker Iowa" (PDF). YouGov. Retrieved 22 January 2016.
  160. ^ "Bernie Sanders Iowa poll". Retrieved 2015-09-10.
  161. ^ "NBC News/Marist Poll – September 2015 – Iowa Questionnaire". Retrieved 2015-09-06.
  162. ^ "Clinton Leads but Sanders Gains, Loras College Poll Finds". loras.edu. Retrieved 2015-09-04.
  163. ^ "Iowa Poll: Clinton leads, but Sanders draws near". Des Moines Register. 29 August 2015.
  164. ^ "Despite email flap, Clinton up in Iowa in Suffolk poll". USA Today. Retrieved 2015-08-26.
  165. ^ "CNN/ORC Iowa Poll" (PDF). CNN. Retrieved 2015-08-12.
  166. ^ "Trump Still Leads in Iowa; Fiorina on Fire; Paul Tanking" (PDF). Public Policy Polling. Retrieved 2015-08-10.
  167. ^ "Iowa Results" (PDF). NBC News/Marist. Retrieved 2015-07-26.
  168. ^ "HuffPo Iowa Dem Caucus" (PDF). huffingtonpost.com. Retrieved 2015-07-22.
  169. ^ "Quinnipiac poll" (PDF). quinnipiac.edu. Retrieved 2015-07-09.
  170. ^ "Donald Trump, Hillary Clinton hold leads in Kansas poll, but many voters are undecided".
  171. ^ "Suffolk Kansas Toplines" (PDF). suffolk.edu. Retrieved 2015-07-09.
  172. ^ Official Primary results
  173. ^ "Kentucky Survey Results" (PDF). publicpolicypolling.com. Retrieved 2016-03-08.
  174. ^ "PPP KY" (PDF). publicpolicypolling.com. Retrieved 2015-07-09.
  175. ^ "LOUISIANA PRESIDENTIAL PRIMARY SURVEY TOPLINE RESULTS" (PDF).
  176. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  177. ^ "WWL-TV/Advocate poll: Carson the favorite of state's Republicans". Retrieved 2015-10-16.
  178. ^ "Residents' Views on Politics, the Economy, & Issues Facing the State of Maine". Retrieved 2015-10-16.
  179. ^ "Maryland poll April 21-24, 2016". American Research Group. Retrieved April 25, 2016.
  180. ^ "MARYLAND: CLINTON LEADS SANDERS BY 25" (PDF). Retrieved 2016-04-22.
  181. ^ "Maryland Likely To Continue Momentum for Trump, Clinton" (PDF). Retrieved 2016-04-19.
  182. ^ "NBC4/Marist Poll April 2016 Maryland Questionnaire" (PDF). Retrieved 2016-04-13.
  183. ^ "Washington Post-University of Maryland poll, March 30-April 3, 2016". Retrieved 2016-04-07.
  184. ^ "Hillary Clinton has 33-point lead in Maryland Democratic primary, new poll shows".
  185. ^ "Maryland Poll" (PDF).
  186. ^ "Goucher poll February 13–18, 2016" (PDF).
  187. ^ "Goucher poll September 26 – October 1, 2015" (PDF).
  188. ^ "(Among Democrats and independents who lean Democratic) Thinking ahead to 2016, between (Martin O'Malley), (Hillary Clinton), (Joe Biden), (Andrew Cuomo) and (Elizabeth Warren) whom would you like to be the next Democratic presidential nominee?". Washington Post. 2014-02-22. Retrieved 2015-07-09.
  189. ^ a b c "Trump's Lead Looks Steady in Run-Up to Super Tuesday". Retrieved 2016-03-01.
  190. ^ "EMERSON POLL: CRUZ CLINGS TO NARROW LEAD IN TEXAS; TRUMP ROMPS IN BAY STATE, CLINTON PULLS AWAY FROM SANDERS" (PDF).
  191. ^ "FINAL FEBRUARY MASS. DEM LIKELY VOTERS GeoCode" (PDF).
  192. ^ "UMass Amherst/WBZ Poll of MA Likely Primary Voters" (PDF).
  193. ^ "WBUR Poll: In Mass., Clinton Edges Sanders, While Trump Leads Big".
  194. ^ "EMERSON POLL: IN MASSACHUSETTS CLINTON, SANDERS IN A DEAD HEAT; TRUMP TROUNCES ALL GOP RIVALS" (PDF).
  195. ^ "March 2016 Democratic Primary Polls" (PDF).
  196. ^ "Wix PDF" (PDF). media.wix.com. Retrieved 2015-07-09.
  197. ^ "Michigan Democratic Presidential Primary".
  198. ^ "Clinton Opens Up Huge Lead in Michigan" (PDF).
  199. ^ "MICHIGAN: TRUMP, CLINTON IN FRONT" (PDF).
  200. ^ a b "Michigan Democratic Presidential Primary".
  201. ^ "Clinton's lead on Sanders shrinks heading into Michigan Primary".
  202. ^ "Donald Trump, Hillary Clinton Hold Big Leads in Michigan: Poll".
  203. ^ "TRUMP LEADS GOP FIELD IN MICHIGAN; DEMOCRATIC RACE CLOSE".
  204. ^ "Clinton, Trump maintain large leads ahead of debates, primary".
  205. ^ "Trump & Clinton Poised to Take Michigan" (PDF).
  206. ^ "Clinton Leads Sanders by 34% February 23, 2016" (PDF).
  207. ^ "ARG POll February 19–20, 2016".
  208. ^ "Clinton Leads Sanders by 33%" (PDF). realclearpolitics.com. Retrieved 20 February 2016.
  209. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  210. ^ a b "IMP/Target Insyght Poll: Clinton Dominates Dem Primary". insidemichiganpolitics.com. Retrieved 2016-02-08.
  211. ^ "Hillary up 19 over Biden and Sanders". mrgmi.com. Retrieved 2015-09-16.
  212. ^ "PPP MI" (PDF). publicpolicypolling.com. Retrieved 2015-07-09.
  213. ^ "Minnesota Poll Results: Presidential race". Star Tribune. January 23, 2016.
  214. ^ "Walker, Clinton Lead in Minnesota; General Closer than 2008 and 2012" (PDF). Retrieved 2015-08-04.
  215. ^ "Suffolk Marginals" (PDF). suffolk.edu. Retrieved 2015-07-09.
  216. ^ "PPP MN" (PDF). publicpolicypolling.com. Retrieved 2015-07-09.
  217. ^ "MISSISSIPPI 2016 PRESIDENTIAL PRIMARY SURVEY TOPLINES" (PDF). Retrieved 2016-03-02.
  218. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  219. ^ "Midwestern States a Toss Up Tuesday" (PDF).
  220. ^ "Missouri Poll Results". RABA Research. Retrieved 11 March 2016.
  221. ^ "Missouri Poll Results". Fort Hayes State University. Retrieved 12 March 2016.
  222. ^ "Trump Up Big in Missouri; GOP Hopefuls Lead Clinton in State" (PDF). Public Policy Polling. Retrieved 2015-08-12.
  223. ^ "Gravis Insights Political Telephone Survey Montana". Gravismarketing.com. Retrieved 2015-07-09.
  224. ^ "Nevada Polling Results". Retrieved 2016-02-18.
  225. ^ "Nevada primary: CNN/ORC poll full results" (PDF). Retrieved 2016-02-17.
  226. ^ "Nevada Democratic Caucus Poll" (PDF).
  227. ^ "South Carolina, Nevada CNN polls find Clinton far ahead". Retrieved 2015-10-12.
  228. ^ "Nevada poll: Sandoval early favorite to succeed Reid; Cruz surges to lead pack with Walker". Gravismarketing.com. Retrieved 2015-07-09.
  229. ^ "American Research Group (2/6-2/7 2016)". The Huffington Post.
  230. ^ "UMass Lowell/7News Daily Tracking Poll of New Hampshire Voters Release 6 of 8" (PDF). University of Massachusetts Lowell Centre for Public Opinion. February 2016. Retrieved 6 February 2016.
  231. ^ Dyck, Joshua J. (January 2016). "UMass Lowell/7News Tracking Poll of New Hampshire Voters Release 1" (PDF). University of Massachusetts Lowell Center for Public Opinion. Retrieved 5 February 2016.
  232. ^ Agiesta, Jennifer (2016-01-31). "Before Iowa, New Hampshire backs Trump, Sanders". CNN. Retrieved 2016-02-01.
  233. ^ "NEW HAMPSHIRE – TRUMP COMFORTABLY AHEAD; BUSH SURGES TO SECOND, KASICH IN THIRD; SANDERS CRUISING AHEAD OF CLINTON" (PDF). Emerson College Polling Society. 27 January 2016. Retrieved 5 February 2016.
  234. ^ "New Hampshire". American Research Group, Inc. Retrieved 5 February 2016.
  235. ^ Myers, R. Kelly (25 January 2016). "Bernie Sanders has Re-Opened a Lead over Hillary Clinton in the Democratic Presidential Race in New Hampshire" (PDF). Franklin Pierce University; Boston Herald. Retrieved 5 February 2016.
  236. ^ "Fox News Poll: Sanders up by 22 points in New Hampshire".
  237. ^ "CBS News 2016 Battleground TrackerNew Hampshire".
  238. ^ "Final January 2016 NH DEM Study" (PDF). Suffolk.edu. Retrieved 2016-01-23.
  239. ^ a b "New Hampshire Democratic Presidential Preference Primary". Americanresearchgroup.com. Retrieved 2016-01-19.
  240. ^ "New Hampshire Polling Results" (PDF). Retrieved 22 January 2016.
  241. ^ "CNN and WMUR Poll". CNN. Retrieved 2016-01-19.
  242. ^ "New Hampshire: Sanders takes control" (PDF). monmouth.edu. Retrieved 2016-01-12.
  243. ^ "Fox News Poll: New Hampshire presidential primary races". foxnews.com. Retrieved 2016-01-08.
  244. ^ "CBS News 2016 Battleground Tracker New Hampshire" (PDF).
  245. ^ "Boston Herald poll article".
  246. ^ "CNN and WMUR Poll" (PDF). CNN. Retrieved December 9, 2015.
  247. ^ "PPP NH poll" (PDF).
  248. ^ "Fox News Poll: Trump, Sanders lead respective primaries in New Hampshire". Fox News.
  249. ^ "Current New Hampshire Polling". Gravis.
  250. ^ "New Hampshire: Clinton Pulls Ahead of Sanders" (PDF). Monmouth University Poll. 3 November 2015. Retrieved 22 January 2016.
  251. ^ "CBS News 2016 Battleground Tracker New Hampshire" (PDF).
  252. ^ "No Groundswell for Biden in New Hampshire: Bloomberg Politics/Saint Anselm Poll".
  253. ^ "Franklin Pierce-Herald poll: Sanders keeps lead over Clinton". bostonherald.com/.
  254. ^ "Full results of Suffolk University/Boston Globe poll". BostonGlobe.com.
  255. ^ "Latest NH Republican and Democratic Poll Results". Gravis.
  256. ^ "NBC News/WSJ/Marist Poll October 2015 New Hampshire Questionnaire". Retrieved 2015-10-04.
  257. ^ "Hillary Clinton trails Sanders in New Hampshire, even without Joe Biden in the race". New Hampshire Results. CNN. Retrieved 2015-09-24.
  258. ^ "WBUR Poll New Hampshire 2016 Democratic Primary" (PDF). WBUR. Retrieved 22 January 2016.
  259. ^ "New Hampshire: Sanders Leads Clinton by 7" (PDF). Monmouth University Poll. 15 September 2015. Retrieved 22 January 2015.
  260. ^ a b Will Jordan. "Sanders up big in New Hampshire and Iowa; Carson trails Trump". YouGov.
  261. ^ "NBC News/Marist Poll – September 2015 – New Hampshire Questionnaire". Retrieved 2015-09-06.
  262. ^ "Trump Way Ahead in New Hampshire; Sanders Leads Clinton" (PDF). Retrieved 2015-08-25.
  263. ^ "Bernie Sanders surges ahead of Hillary Clinton in N.H., 44-37". Retrieved 2015-08-11.
  264. ^ "Clinton in Jeopardy of Losing New Hampshire to Sanders". New Hampshire Results. PR Newswire. Retrieved 2015-08-05.
  265. ^ "Sanders keeping pace with Clinton in New Hampshire" (PDF). New Hampshire Results. WMUR. Retrieved 2015-08-04.
  266. ^ "New Hampshire Results" (PDF). NBC News/Marist. Retrieved 2015-07-26.
  267. ^ "WMUR Dem poll" (PDF). wmur.com. Retrieved 2015-07-09.
  268. ^ "CBS News 2016 Battleground Tracker New Jersey". CBS. Retrieved June 6, 2016.
  269. ^ "New Jersey 2016 Primary Forecasts". ARG. Retrieved June 7, 2016.
  270. ^ "IT'S BLUE JERSEY AS CLINTON OR SANDERS TOP TRUMP, QUINNIPIAC UNIVERSITY POLL FINDS; CLINTON TOPS SANDERS AMONG DEMOCRATS" (PDF). Quinnipiac. Retrieved May 19, 2016.
  271. ^ "NEW JERSEY: CLINTON HOLDS HUGE PRIMARY EDGE" (PDF). Monmouth. Retrieved May 4, 2016.
  272. ^ "OVER HALF OF NJ REPUBLICANS CHOOSE TRUMP; CLINTON STILL LEADS BUT LOSING GROUND AGAINST SANDERS". Eagletonpoll.rutgers.edu. Retrieved 2016-04-18.
  273. ^ "TRUMP, CLINTON CONTINUE TO HOLD COMMANDING LEADS IN NEW JERSEY; RUBIO A DISTANT SECOND IN GOP RACE". Eagletonpoll.rutgers.edu. Retrieved 2016-02-24.
  274. ^ "CHRISTIE'S JOB APPROVAL HITS NEW LOW, RATINGS ACROSS THE BOARD CONTINUE TO SLIP; TRUMP STILL LEADS 2016 GOP FIELD IN NEW JERSEY, CHRISTIE RECLAIMS SECOND". Eagletonpoll.rutgers.edu. Retrieved 2016-02-25.
  275. ^ "151117". View2.fdu.edu. 2015-11-17. Retrieved 2016-01-23.
  276. ^ "Trump Still Leads Gop Field In New Jersey, Christie Falls Well Behind; Voters To Christie: End Campaign | Center For Public Interest Polling". Eagletonpoll.rutgers.edu. 2015-10-15. Retrieved 2016-01-23.
  277. ^ "2016 Candidates Polarize NJ Voters :: Fairleigh Dickinson University PublicMind Poll". Publicmind.fdu.edu. Retrieved 2015-07-09.
  278. ^ "NEW MEXICO DEMOCRATIC PRIMARY LIKELY VOTER SURVEY PRESIDENTIAL PRIMARY RACE". BWD Global. May 30, 2016. Retrieved June 5, 2016.
  279. ^ "Journal Poll: Clinton leads among NM Dems".
  280. ^ "Clinton and Trump Poised to Regain Momentum in the Empire State; NY Looks Safe For Dems In General" (PDF). Retrieved 2016-04-18.
  281. ^ "Poll: Clinton keeps New York edge, leads Sanders in California". Retrieved 2016-04-17.
  282. ^ "Clinton Protects Big Lead Over Sanders in NY: NBC4/WSJ/Marist Poll". Retrieved 2016-04-14.
  283. ^ "Black Votes Matter for Clinton in New York, Quinnipiac University Poll Finds; Trump Sweeps All Groups Against Cruz or Kasich" (PDF). Retrieved 2016-04-12.
  284. ^ "New York Polling Results". 17 April 2016.
  285. ^ "Bernie Narrows Gap; Hillary Still Leads By 10 Points; Trump Maintains Huge Lead, Kasich 2nd, Cruz 3rd" (PDF). Retrieved 2016-04-13.
  286. ^ "New York: Clinton Leads by 12" (PDF). Retrieved 2016-04-11.
  287. ^ "New York Hates Ted Cruz; Trump, Clinton Lead Big" (PDF). Retrieved 2016-04-15.
  288. ^ "NBC News/WSJ/Marist Poll April 2016 New York Questionnaire" (PDF). Retrieved 2016-04-11.
  289. ^ "NY1/Baruch College Poll: Trump Leads Rivals by 43 Percentage Points". Retrieved 2016-04-15.
  290. ^ "Clinton and Trump Lose Ground in NY, but Still in Control; Voters Weigh in on Open-Conventions". Retrieved 2016-04-08.
  291. ^ "Fox News Poll: Trump, Clinton rule Empire State". Retrieved 2016-04-10.
  292. ^ "CBS News 2016 Battleground TrackerNew York". Retrieved 2016-04-03.
  293. ^ "Clinton, Trump Have Big Leads in New York Primaries, Quinnipiac Poll Finds; Adopted Daughter Thumps Native Son, Edges Kasich" (PDF). Retrieved 2016-03-31.
  294. ^ "Emerson Poll: Trump, Clinton Trouncing Their Rivals in New York; In General Election, Hillary and Bernie Lead The Donald" (PDF).
  295. ^ "Quinnipiac NY poll" (PDF). quinnipiac.edu. Retrieved 2015-07-09.
  296. ^ "Midwestern States a Toss Up Tuesday" (PDF).
  297. ^ [1]
  298. ^ [2]
  299. ^ [3]
  300. ^ [4]
  301. ^ SurveyUSA
  302. ^ "Trump, Clinton Continue To Lead By Double Digits in NC" (PDF).
  303. ^ High Point University. "HPU Poll: Clinton Leads Democratic Primary; Trump, Cruz and Rubio Have Most GOP Support". High Point University.
  304. ^ "Trump Keeps Gaining in NC; Clinton Maintains Huge Lead" (PDF). Public Policy Polling. 20 January 2016. Retrieved 22 January 2016.
  305. ^ Dowdy, Demi (27 January 2016). "Civitas Poll: Clinton Maintains Strong Lead among NC Democrats". Civitas Institute. Retrieved 5 February 2016.
  306. ^ "PPP NC poll" (PDF).
  307. ^ "Presidential Primary Poll October 29 – November 2, 2015" (PDF). Elon University. Retrieved 22 January 2016.
  308. ^ "Clinton rising in North Carolina; Trump still leads" (PDF). Public Policy Polling. 27 October 2015. Retrieved 22 January 2016.
  309. ^ "Trump Steady in North Carolina; Biden Polls Well" (PDF). www.publicpolicypolling.com. Retrieved 2015-09-30.
  310. ^ "Elon University Presidential Primary Poll September 17–21, 2015" (PDF). www.elon.edu. Retrieved 2015-09-24.
  311. ^ "Trump Continues to Grow in North Carolina; Dem Race Steady" (PDF). www.publicpolicypolling.com. Retrieved 2015-08-20.
  312. ^ "PPP NC" (PDF). publicpolicypolling.com. Retrieved 2015-07-09.
  313. ^ Caucus results
  314. ^ "ARG Ohio Poll March 12-13, 2016".
  315. ^ "OHIO: KASICH, TRUMP IN GOP SQUEAKER; CLINTON LEADS IN DEM RACE" (PDF).
  316. ^ "March 14, 2016 - Trump Tops Rubio In Florida, Ties Kasich In Ohio, Quinnipiac University Poll Finds; Clinton Leads Sanders In Two Critical Primaries".
  317. ^ "Midwestern States a Toss Up Tuesday" (PDF).
  318. ^ "Poll: Trump and Kasich neck-and-neck in Ohio; Trump leads in Florida".
  319. ^ "Polls: Trump Ahead in Florida, Illinois; Kasich Leads in Ohio".
  320. ^ "CNN/ORC Poll: Trump, Clinton leading in Florida, Ohio".
  321. ^ "2016 Presidential Swing State Polls Poll – October 7, 2015 – Biden, Carson Are Hot In Flori | Quinnipiac University Connecticut". Quinnipiac.edu. 2015-10-07. Retrieved 2016-01-23.
  322. ^ a b "Quinnipiac poll" (PDF). quinnipiac.edu. Retrieved 2015-07-09.
  323. ^ "Monmouth University Poll" (PDF).
  324. ^ "News9/Newson6: Sanders Closes Gap, But Still Trails Clinton In OK".
  325. ^ Silas Allen. "Poll shows Democratic primary race tightening in Oklahoma".
  326. ^ Madison Grady. "SoonerPoll: Clinton remains frontrunner, but Sanders continues to rise".
  327. ^ "EXCLUSIVE POLL: Trump, Clinton Remain Front-runners in Oklahoma". November 20, 2015.
  328. ^ "Poll: Ben Carson leads Republican presidential field in Oklahoma". Retrieved 2015-10-29.
  329. ^ Official Primary Results
  330. ^ "Poll: Despite Bernie Sanders' Crowds, Hillary Clinton Ahead In Oregon". May 10, 2016. Retrieved May 11, 2016.
  331. ^ "In City of Portland, Oregon: Ted Wheeler Is Overwhelming Favorite to Win Mayoral Primary; But Will He Avoid an 11/08/16 Runoff?". Retrieved 2016-04-02.
  332. ^ "Oregon presidential poll: Hillary Clinton pressed by Bernie Sanders; Donald Trump leads GOP field". Retrieved 2015-08-06.
  333. ^ "Pennsylvania Democratic Presidential Primary Poll 4/25/16" (PDF). Opinion Savvy. April 25, 2016. Retrieved April 25, 2016.
  334. ^ "Pennsylvania Democratic Presidential Primary Poll" (PDF). CPEC LLC. April 26, 2016. Retrieved April 26, 2016.
  335. ^ "2016 Pennsylvania Democratic Presidential Primary - Clinton 58%, Sanders 38% (ARG 4/21-4/24)". American Research Group. April 26, 2016. Retrieved April 26, 2016.
  336. ^ "Pennsylvania Democratic Primary Poll". Harper Polling. April 26, 2016. Retrieved April 26, 2016.
  337. ^ "Poll: Donald Trump, Hillary Clinton lead in Pennsylvania, Indiana". Retrieved 2016-04-24.
  338. ^ "Trump and Clinton Hold Strong Leads in Pennsylvania, New Poll Shows". Retrieved 2016-04-24.
  339. ^ "PENNSYLVANIA: CLINTON LEADS SANDERS BY 13" (PDF). Retrieved 2016-04-20.
  340. ^ "April 2016 Franklin & Marshall College Poll" (PDF). Retrieved 2016-04-21.
  341. ^ "Fox News Poll: Trump holds huge lead in Pennsylvania, Clinton up over Sanders". Retrieved 2016-04-10.
  342. ^ "Pennsylvania Quinnipiac University Poll March 30-April 4, 2016" (PDF). Retrieved 2016-04-06.
  343. ^ "Pennsylvania Democratic Primary Poll April 2-3, 2016". Retrieved 2016-04-05.
  344. ^ "March 2016 Franklin & Marshall College Poll" (PDF). Retrieved 2016-03-24.
  345. ^ "PENNSYLVANIA STATEWIDE POLL REPUBLICAN AND DEMOCRATIC PRIMARIES".
  346. ^ "Franklin & Marshall February 13–21, 2016" (PDF).
  347. ^ "2016 Pennsylvania Democratic Presidential Primary – Clinton 48%, Sanders 41% (Robert Morris University 2/11-2/16)".
  348. ^ Field, Nick. "Harper Poll: Clinton 55% Sanders 28%". Politics PA. Retrieved 5 February 2016.
  349. ^ "January 2016 Franklin & Marshall College Poll" (PDF). Franklin & Martin. 28 January 2016. Retrieved 5 February 2016.
  350. ^ "Franklin and Marshall College Poll: Survey of Pennsylvanians Summary of Findings" (PDF). Franklin & Marshall. 29 October 2015. Retrieved 22 January 2016.
  351. ^ "Taubman Center poll: Clinton, Trump lead in Rhode Island, but many voters undecided". Retrieved 2016-04-24.
  352. ^ a b "Statewide Presidential primary poll: Trump strong, Clinton rising". Taubman Center for American Politics and Policy. Retrieved 1 March 2016.
  353. ^ "Clemson University Palmetto Poll Democratic primary summary". Retrieved 2016-02-26.
  354. ^ "EMERSON POLL: CLINTON LEADS SANDERS BY A WIDE MARGIN IN SOUTH CAROLINA, WITH STRONG SUPPORT FROM AFRICAN AMERICANS" (PDF). Retrieved 2016-02-26.
  355. ^ "Donald Trump's Lead Slashed in South Carolina: Poll". Retrieved 2016-02-19.
  356. ^ "Clinton Strong in South Carolina But Warning Signs Ahead, Bloomberg Poll Shows". Retrieved 2016-02-18.
  357. ^ "South Carolina primary: ARG Poll". Retrieved 2016-02-17.
  358. ^ http://www.thestate.com/news/politics-government/politics-columns-blogs/the-buzz/article60547281.html
  359. ^ "South Carolina primary: CNN/ORC poll full results". Retrieved 2016-02-16.
  360. ^ http://elections.huffingtonpost.com/pollster/polls/arg-23748
  361. ^ "CBS News 2016 Battleground Tracker South Carolina" (PDF). CBS News. February 14, 2016. Retrieved February 14, 2016.
  362. ^ "NBC News/WSJ/Marist Poll January 2016 South Carolina Questionnaire" (PDF). Retrieved 5 February 2016.
  363. ^ "CBS News 2016 Battleground Tracker South Carolina" (PDF). CBS News. January 24, 2016. Retrieved January 24, 2016.
  364. ^ "CBS News 2016 Battleground Tracker South Carolina" (PDF).
  365. ^ "Trump Still Leads But Declining in SC; Clinton Dominant" (PDF). Public Policy Polling. 10 November 2015. Retrieved 22 January 2016.
  366. ^ "South Carolina: Clinton with Big Lead" (PDF). Monmouth University Poll. 10 November 2015. Retrieved 22 January 2015.
  367. ^ "Winthrop University: Winthrop Poll – Current Findings". winthrop.edu.
  368. ^ "PDF file" (PDF). Retrieved 2015-10-12.
  369. ^ "SC Poll". Retrieved 2015-11-05.
  370. ^ "CNN SC poll". Retrieved 2015-11-05.
  371. ^ "The Buzz". Retrieved 2015-10-01.
  372. ^ "The Buzz". Retrieved 2015-09-09.
  373. ^ "SC polling" (PDF). Retrieved 2015-08-04.
  374. ^ "Morning Consult SC" (PDF). morningconsult.com. Retrieved 2015-07-09.
  375. ^ "Hillary Clinton Leads Sanders By 3 in South Dakota on Strength with Women and Registered Democrats" (PDF). Targeted Persuasion. Retrieved June 4, 2016.
  376. ^ "Polls: Trump, Clinton Ahead in Super Tuesday States".
  377. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  378. ^ "Carson leads the presidential field in Tennessee, but many still unsure, and more oppose than favor other top candidates". mtsupoll.org.
  379. ^ "EMERSON POLL: CRUZ CLINGS TO NARROW LEAD IN TEXAS; TRUMP ROMPS IN BAY STATE, CLINTON PULLS AWAY FROM SANDERS" (PDF).
  380. ^ "Texas Democratic Presidential Primary".
  381. ^ "CBS News 2016 Battleground TrackerTexas".
  382. ^ "TEXAS: CRUZ, CLINTON LEAD PRIMARIES" (PDF).
  383. ^ "2016 Texas Republican Presidential Primary – Cruz 29%, Trump 28% (Emerson College Polling Society 2/21-2/23)" (PDF).
  384. ^ "NBC News/WSJ/Marist Poll" (PDF).
  385. ^ "Cruz Increases Lead In TX Against Trump In KTVT-CBS 11 / Dixie Strategies Poll".
  386. ^ "Results of SurveyUSA Election Poll #22696" (PDF).
  387. ^ "Cruz, Clinton still lead in Texas".
  388. ^ Ramsey, Ross. "UT/TT Poll: Clinton Still Leads in Texas, But Margin Has Narrowed, by Ross Ramsey". The Texas Tribune. Retrieved 2016-02-23.
  389. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  390. ^ "Texas Statewide Survey" (PDF). University of Texas / Texas Tribune. Retrieved 22 January 2016.
  391. ^ "Carson Leads Trump Slightly In Texas KTVT-CBS 11 Dixie Strategies Poll". cbslocal.com.
  392. ^ "Texas Lyceum Poll Results: 2015 Texas Statewide Survey" (PDF). texaslyceum.org. Retrieved 2015-10-01.
  393. ^ "TX Tribune" (PDF). amazonaws.com. Retrieved 2015-07-09.
  394. ^ "Texas Statewide Survey" (PDF). Retrieved 22 January 2016.
  395. ^ Lisa Riley Roche. "Cruz, Sanders top picks in Tuesday's Utah caucuses, poll says". ksl.com.
  396. ^ Lisa Riley Roche. "Cruz, Sanders are Utahns' pick for president; Trump announces Utah organization". desertnews.com.
  397. ^ Lee Davidson. "Poll: 4-way tie among GOP presidential candidates in Utah". sltrib.com.
  398. ^ Bryan Schott. "Poll Shows Sanders Leads the Democratic Field Overall in Utah; Utah Democrats Back Clinton". utahpolicy.com.
  399. ^ "Carson, Sanders Top Picks Among Utahns for 2016". Retrieved 2015-09-21.
  400. ^ "Utahns Still Mostly Undecided on Presidential Field; Bush and Clinton in the Lead". Retrieved 2015-08-15.
  401. ^ Schott, Bryan. "Bush, Clinton are Frontrunners for 2016 Nomination Among Utahns". Retrieved 2015-07-09.
  402. ^ "Subject: The VPR Poll: The Races, The Issues And The Full Results".
  403. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  404. ^ "Poll: Bernie Sanders popular in Vt., even among Republicans · Castleton College". Wcax.com. Retrieved 2015-09-18.
  405. ^ "Vermont Election Poll – 2014". Castleton.edu. Retrieved 2015-07-10.
  406. ^ "CBS News 2016 Battleground TrackerVirginia". Retrieved 2016-02-28.
  407. ^ "VIRGINIA: TRUMP, CLINTON LEAD PRIMARIES" (PDF).
  408. ^ "RC Poll: Clinton, Trump hold leads in Virginia primary elections; Cruz, Rubio in tight battle for second".
  409. ^ "Subject: Clinton leads in 10 of 12 Early March Primaries; Benefits From Overwhelming Black Support" (PDF).
  410. ^ "Trump leads GOP field, with Rubio and Cruz next; Clinton leads Sanders among Virginia Democrats" (PDF).
  411. ^ "VIRGINIA SURVEY 2015" (PDF). umw.edu. Retrieved 2015-11-17.
  412. ^ "Clinton top choice among Virginia Democrats, but Biden performs better against Republicans" (PDF). Cnu.edu. Retrieved 2015-10-12.
  413. ^ "Bush leads GOP Field in Virginia Poll" (PDF). Public Policy Polling. Retrieved 2015-07-16.
  414. ^ "Bush tops Clinton in battleground Virginia; Republican 2016 field still largely wide open, while Democrats rally strongly around Clinton" (PDF). Cnu.edu. Retrieved 2015-07-11.
  415. ^ "Washington State poll: Paul leads GOP field, Murray leads McMorris Rodgers; Right to Work up 45% to 33% – Gravis". Gravismarketing.com. Retrieved 2015-07-09.
  416. ^ "PPP WA" (PDF). publicpolicypolling.com. Retrieved 2015-07-09.
  417. ^ Primary results
  418. ^ "Overwhelming support for Trump, small lead for Sanders in MetroNews West Virginia Poll". MetroNews. 6 May 2016. Retrieved 6 May 2016.
  419. ^ "Trump, Sanders lead in West Virginia (april 2016)" (PDF). Scribd. Retrieved 3 May 2016.
  420. ^ "WV-Gov Thirty-Ninth Street Strategies for West Virginia Veterans (March 2016)". Scribd. Retrieved 21 April 2016.
  421. ^ "Poll: WV prefers GOP for president, Democrat for governor". wvgazettemail.com. 25 February 2016. Retrieved 2016-02-29.
  422. ^ "Trump and Sanders Have Big Leads in MetroNews West Virginia Poll" (PDF). wvmetronews.com. 22 February 2016. Archived from the original (PDF) on 2016-02-26. Retrieved 2016-02-22.
  423. ^ "Survey: WV residents likely to pick Trump over Clinton in 2016". Statejournal.com. Retrieved 2015-08-27.
  424. ^ "Trump leads Republican field and Clinton in West Virginia, according to new Orion Strategies statewide poll". prnewswire.com. 26 August 2015.
  425. ^ "Poll: Democrats running for WV gov locked in dead heat". Wvgazettemail.com/. 26 August 2015. Retrieved 2015-08-26.
  426. ^ "ARC Wisconsin Poll April 1-3, 2016". Retrieved 2016-04-04.
  427. ^ "Wisconsin Feels the Bern While Cruz has Momentum Going into Primaries" (PDF). Retrieved 2016-04-04.
  428. ^ "CBS News 2016 Battleground TrackerWisconsin". Retrieved 2016-04-03.
  429. ^ "FOX Business Network Poll: Sanders Tops Clinton by Five in Wisconsin". Retrieved 2016-03-31.
  430. ^ "Loras College Poll finds Cruz tops Trump, Clinton leads Sanders, tight race for state supreme court in Wisconsin". Retrieved 2016-04-02.
  431. ^ "Sanders leads in Wisconsin; GOP Race Close; VA Privatization Issue Hurts Johnson" (PDF). Retrieved 2016-03-31.
  432. ^ "Marquette Law School Poll – March 24-28, 2016" (PDF). Retrieved 2016-03-30.
  433. ^ "EMERSON POLL: WISCONSIN PRIMARY IN PLAY FOR BOTH PARTIES; CRUZ LEADS TRUMP BY A POINT; CLINTON UP 6 OVER SANDERS; CRUZ FARES BETTER THAN TRUMP IN GENERAL AGAINST CLINTON" (PDF). Retrieved 2016-03-24.
  434. ^ "@MULawPoll: In Dem prez race in WI, it's Sanders 44%, Clinton 43%. In @mulawpoll in January, it was Clinton 45%, Sanders 43%. #mulawpoll". Twitter. February 25, 2016. Retrieved February 25, 2016.
  435. ^ "For Democrats in WI: Hillary Clinton 45%, Bernie Sanders 43%, Martin O'Malley 1% among those intending to vote". Twitter. January 28, 2016. Retrieved February 5, 2016.
  436. ^ "New Marquette Law School Poll finds Carson, Trump and Rubio atop tight Wisconsin GOP primary race".
  437. ^ "The Wisconsin Survey fall 2015 | The Wisconsin Survey fall 2015" (PDF). Retrieved 2015-10-21.
  438. ^ "Marquette Law School Poll finds Walker job approval at 37 percent, following presidential run | Marquette Law School Poll". law.marquette.edu. Retrieved 2015-09-30.
  439. ^ "Marquette Law School Poll finds Walker, Clinton leading primary fields among Wisconsin voters | Marquette Law School Poll". law.marquette.edu. Retrieved 2015-08-20.
  440. ^ "Marquette Law School Poll finds Walker job approval down | Marquette Law School Poll". law.marquette.edu. Retrieved 2015-07-09.
  441. ^ Caucus results
  442. ^ Primary results
  443. ^ Caucus results
  444. ^ Caucus results
  445. ^ Primary results
  446. ^ "2016 Elections Puerto Rico Poll". PDF. Retrieved June 5, 2016.
  447. ^ Caucus results