Statewide opinion polling for the Democratic Party presidential primaries, 2016

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Key:
  Hillary Clinton ahead
26 states + 6 shared
  Bernie Sanders ahead
1 state + 6 shared
  No polling data in last six months
19 states & D.C.

This article contains opinion polling by U.S. state for the 2016 Democratic Party presidential primaries.

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. For when any given state votes, see Democratic Party presidential primaries, 2016 - Schedule of primaries and caucuses.

Latest polls[edit]

The following table shows the Six most recent polls in different states.

Poll source Date State 1st 2nd 3rd Other
Des Moines Register/Bloomberg Politics[1]

Margin of error ± 4.9%
Sample size: 402

October 16-19, 2015 Iowa Hillary Clinton
48%
Bernie Sanders
41%
Martin O'Malley 2% Jim Webb 1%, Lincoln Chafee 1%, Uncommited 3%, Not Sure 4%
Emerson College

Margin of error: ± 6.0%
Sample size: 265

October 16-18, 2015 Massachusetts Hillary Clinton
59%
Bernie Sanders
25%
Jim Webb
5%
Martin O'Malley 3%, Lincoln Chafee 3%, Other 2%, Undecided 3%
Public Policy Polling

Margin of error: ± 4.9%
Sample size: 393

October 16-18, 2015 New Hampshire 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%
Wisconsin Public Radio

Margin of error: ± 6%
Sample size: 600

October 14-17, 2015 Wisconsin Hillary Clinton
35%
Bernie Sanders
33%
Joe Biden
21%
O'Malley 1%, Webb 0%, Chafee 0%, Someone else 0%, Not sure 10%
Public Policy Polling

Margin of error: ± 4.8%
Sample size: 416

October 8-11, 2015 Pennsylvania 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%
Rutgers-Eagleton Poll[2]

Margin of error: ± 5.7%
Sample size: 367

October 3–10, 2015 New Jersey Hillary Clinton
49%
Bernie Sanders
19%
Joe Biden
10%
Other 3%, Don't know 20%

Polling[edit]

Alabama[edit]

Poll source Date 1st 2nd 3rd Other
News-5/Strategy Research

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

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

Arizona[edit]

Poll source Date 1st 2nd 3rd Other
One America News[3]

Margin of error: ± 4.7%
Sample size: 427

Published August 19, 2015 Hillary Clinton
56%
Bernie Sanders
34%
Joe Biden
6%
Lincoln Chafee 2, Jim Webb 1%, Martin O'Malley 1%
Public Policy Polling [4]

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%

Arkansas[edit]

Poll source Date 1st 2nd 3rd Other
Suffolk [5]

Margin of error: ± ?
Sample size: 209

September 20–23, 2014 Hillary Clinton
70.81%
Joe Biden
7.66%
Andrew Cuomo
5.26%
Elizabeth Warren 3.35%, Martin O’Malley 2.39%, Other 0.48%, Undecided/Refused 10.05%
Polling Company/WomenTrend[6]

Margin of error: ± ?
Sample size: ?

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

27%

California[edit]

Poll source Date 1st 2nd 3rd Other
Field Poll[7]

Margin of error: ± 5.0%
Sample size: 391

September 17-October 4, 2015 Hillary Clinton
40%
Bernie Sanders
31%
Joe Biden
15%
Martin O'Malley 1%, Lincoln Chafee 0%, Jim Webb 1%, Other 2%, Undecided 12%
Hillary Clinton
47%
Bernie Sanders
35%
Martin O'Malley 1%, Jim Webb 1%, Lincoln Chaffee 0%, Other 2%, Undecided 14%
USC/LA Times[8]

Margin of error: ± 3.6%
Sample size: ?

August 29-September 8, 2015 Hillary Clinton
39%
Bernie Sanders
23%
Joe Biden
11%
Other/NA 11%, Undecided 16%
Hillary Clinton
42%
Bernie Sanders
26%
Other/NA 16%, Undecided 16%
Field Poll[9]

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

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

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%

Colorado[edit]

Poll source Date 1st 2nd 3rd Other
Suffolk[10]

Margin of error: ± ?
Sample size: 159

September 13–16, 2014 Hillary Clinton
59.12%
Elizabeth Warren
21.38%
Joe Biden
7.55%
Andrew Cuomo 3.77%, Martin O’Malley 0%, Undecided 5.66%, Other 1.89%, Refused 0.63%

Connecticut[edit]

Poll source Date 1st 2nd 3rd Other
Quinnipiac University[11]

Margin of error: ± 4%
Sample size: 610

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

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%

Florida[edit]

Poll source Date 1st 2nd 3rd Other
Quinnipiac University[13]

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[14]

Margin of error: ± 5.1%
Sample size: 368

September 11-13, 2015 Hillary Clinton
55%
Bernie Sanders
18%
Joe Biden
17%
Lincoln Chafee 1%, Lawrence Lessig 0%, Martin O'Malley 2, Jim Webb 1%, Someone else/Undecided 6%
Gravis Marketing[15]

Margin of error: ± 4%
Sample size: 693

September 5-11, 2015 Hillary Clinton
41.6%
Joe Biden
21.4%
Bernie Sanders
12.5%
Lincoln Chafee 0.4%, Martin O'Malley 1.5%, Jim Webb 1.3%, Unsure 21.3%
Quinnipiac University[16]

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[17]

Margin of error: ± 5.3%
Sample size: 345

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

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[19]

Margin of error: ± 4.5%
Sample size: 500

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

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

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

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

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%
Gravis Marketing

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

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%
Quinnipiac University

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

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

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

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%
Quinnipiac University

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%

Georgia[edit]

Poll source Date 1st 2nd 3rd Other
Opinion Savvy[21]

Margin of error: ± 4.8
Sample size: 413

Published September 3, 2015 Hillary Clinton
51%
Bernie Sanders
24%
Joe Biden
15%
Lincoln Chafee/Undecided 5%

Idaho[edit]

Poll source Date 1st 2nd 3rd Other
Dan Jones & Associates[22]

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[23]

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[24]

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%

Illinois[edit]

Poll source Date 1st 2nd 3rd Other
Public Policy Polling[25]

Margin of error: ± 4.9%
Sample size: 409

July 20–21, 2015 Hillary Clinton
60%
Bernie Sanders
23%
Martin O'Malley
4%
Jim Webb 3%, Lincoln Chafee 1%, Not sure 8%

Iowa[edit]

Poll source Date 1st 2nd 3rd Other
Des Moines Register/Bloomberg Politics[26]

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[27]

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[28]

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[29]

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[30]

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[31]

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[32]

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[33]

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[34]

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[35]

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[36]

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[37]

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[38]

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[39]

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%
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%
The Daily Caller/Vox Populi Polling

Margin of error: ± 6.8%
Sample size: 204

April 22–24, 2014 Hillary Clinton
71%
Joe Biden
13%
Elizabeth Warren
10%
Andrew Cuomo 3%, Brian Schweitzer 2%, Martin O'Malley 1%
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%
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%
McKeon & Associates

Margin of error: ±3.9%
Sample size: 247

April 18, 2013 Hillary Clinton
43%
Joe Biden
27%
Andrew Cuomo
11%
Other 9%, Undecided 10%
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%

Kansas[edit]

Poll source Date 1st 2nd 3rd Other
Suffolk University[40]

Margin of error: ± ?
Sample size: 118

September 27–30, 2014 Hillary Clinton
61.86%
Elizabeth Warren
13.56%
Joe Biden
4.24%
Andrew Cuomo 4.24%, Martin O'Malley 0.85%, Other 1.69%, Undecided/Refused 13.56%

Kentucky[edit]

Poll source Date 1st 2nd 3rd Other
Public Policy Polling[41]

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%

Louisiana[edit]

Poll source Date 1st 2nd 3rd Other
WWL-TV-Clarus[42]

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%

Maine[edit]

Poll source Date 1st 2nd 3rd Other
Critical Insights[43]

Margin of error: 4%
Sample size: 600

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

Maryland[edit]

Poll source Date 1st 2nd 3rd Other
Washington Post[44]

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%
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%

Massachusetts[edit]

Poll source Date 1st 2nd 3rd Other
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[45]

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%

Michigan[edit]

Poll source Date 1st 2nd 3rd Other
Marketing Resource Group[46]

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[47]

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
60.85%
Joe Biden
17.45%
Elizabeth Warren
6.6%
Andrew Cuomo 3.77%, Martin O'Malley 0.94%, Undecided 8.96%, Refused 0.94%, Other 0.47%

Minnesota[edit]

Poll source Date 1st 2nd 3rd Other
Public Policy Polling[48]

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[49]

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[50]

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%

Missouri[edit]

Poll source Date 1st 2nd 3rd Other
Public Policy Polling[51]

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%

Montana[edit]

Poll source Date 1st 2nd 3rd Other
Gravis Marketing[52]

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%

Nevada[edit]

Poll source Date 1st 2nd 3rd Other
CNN/ORC[53]

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[54]

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%

New Hampshire[edit]

Poll source Date 1st 2nd 3rd Other
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[55]

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[56]

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[57]

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[58]

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[59]

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[60]

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[61]

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[62]

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%, Larry Lessig 1%, other 1%, undecided 3%
YouGov/CBS News[63]

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[64]

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[65]

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[66]

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[67]

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[68]

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[69]

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[70]

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%
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%
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%

New Jersey[edit]

Poll source Date 1st 2nd 3rd Other
Rutgers-Eagleton Poll[71]

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[72]

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%
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%
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%

New York[edit]

Poll source Date 1st 2nd 3rd Other
Siena College

Margin of error: ± 5%
Sample size: 378

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[73]

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%
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%

North Carolina[edit]

Poll source Date 1st 2nd 3rd Other
Public Policy Polling[74]

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[75]

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[76]

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[77]

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%
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%

Ohio[edit]

Poll source Date 1st 2nd 3rd Other
Quinnipiac University[78]

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[17]

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[79]

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%

Oregon[edit]

Poll source Date 1st 2nd 3rd Other
DHM Research[80]

Margin of error: ± 7%
Sample size: 206

July 22–27, 2015 Hillary Clinton
44%
Bernie Sanders
39%
Other 5%, Undecided 12%

Pennsylvania[edit]

Poll source Date 1st 2nd 3rd Other
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[17]

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[79]

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%
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%
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%

South Carolina[edit]

Poll source Date 1st 2nd 3rd Other
CNN/ORC[81]

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%
Gravis Marketing[82]

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[63]

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[83]

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[84]

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[85]

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%
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%

Texas[edit]

Poll source Date 1st 2nd 3rd Other
Texas Lyceum[86]

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[87]

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

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%
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%
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%

Utah[edit]

Poll source Date 1st 2nd 3rd Other
Dan Jones & Associates[88]

Margin of error: ?
Sample size: ?

September 8-17, 2015 Bernie Sanders
31%
Hillary Clinton
30%
Joe Biden
20%
Dan Jones & Associates[89]

Margin of error: ± ?
Sample size: ?

July 14–21, 2015 Hillary Clinton
50%
Bernie Sanders
30%
Joe Biden
12%
Other/Undecided 8%
Dan Jones & Associates[90]

Margin of error: ± ?
Sample size: ?

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

Vermont[edit]

Poll source Date 1st 2nd 3rd Other
Castleton College[91]

Margin of error: ± 4%
Sample size: 617

August 24 - September 14, 2015 Bernie Sanders
65%
Hillary Clinton
14%
Others 10%, Not sure 11%
Castleton College[92]

Margin of error: ± 3.8%
Sample size: 653

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

Virginia[edit]

Poll source Date 1st 2nd 3rd Other
Christopher Newport University[93]

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[94]

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[95]

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%
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%
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%

Washington[edit]

Poll source Date 1st 2nd 3rd Other
Gravis Marketing[96]

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[97]

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%

West Virginia[edit]

Poll source Date 1st 2nd 3rd Other
Orion Strategies[98]

Margin of error ±4.9%[99]
Sample size: 406

August 27, 2015 Hillary Clinton
23%
Joe Biden
16%
Bernie Sanders
12%
Undecided 49%
Prism Surveys[100]

Margin of error: ± 3.21%
Sample size: 900

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

Wisconsin[edit]

Poll source Date 1st 2nd 3rd Other
St. Norbert College[101]

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%
Marquette University[102]

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[103]

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[104]

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%
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%
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%

See also[edit]

General election polling
Democratic primary polling
Republican primary polling

References[edit]

  1. ^ http://www.desmoinesregister.com/story/news/elections/presidential/caucus/2015/10/22/iowa-poll-clinton-up-7-but-gap-tightens/74306980/
  2. ^ "TRUMP STILL LEADS GOP FIELD IN NEW JERSEY, CHRISTIE FALLS WELL BEHIND; VOTERS TO CHRISTIE: END CAMPAIGN". Retrieved 2015-10-15. 
  3. ^ "Arizona Polling Results" (PDF). One America News. Retrieved 2015-08-20. 
  4. ^ "Clinton Closely Matched With Most Republicans in Arizona" (PDF). Publicpolicypolling.com. Retrieved 2015-07-11. 
  5. ^ "Arkansas September Toplines" (PDF). Suffolk.edu. Retrieved 2015-07-11. 
  6. ^ [1][dead link]
  7. ^ "http://www.sacbee.com/news/politics-government/capitol-alert/article38041509.ece/BINARY/PDF:%20Field%20Poll%20results:%20Sanders%20gains%20on%20Clinton". http://www.sacbee.com/. Retrieved 2015-10-07. 
  8. ^ "Trump and Clinton lead presidential contenders in California". http://news.usc.edu/. Retrieved 2015-09-13. 
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  11. ^ University, Quinnipiac. "Release Detail". Quinnipiac University. Retrieved 2015-10-13. 
  12. ^ University, Quinnipiac. "Release Detail". Quinnipiac University. Retrieved 2015-07-09. 
  13. ^ Quinnipiac University. "2016 Presidential Swing State Polls Poll - October 7, 2015 - Biden, Carson Are Hot In Flori - Quinnipiac University Connecticut". Quinnipiac University. 
  14. ^ http://www.publicpolicypolling.com/pdf/2015/PPP_Release_FL_91515.pdf
  15. ^ "Florida Poll (September 12, 2015)3 (2)". Scribd. 
  16. ^ "Poll: Hillary Clinton, Donald Trump lead in Florida". Retrieved 2015-09-06. 
  17. ^ a b c "http://www.quinnipiac.edu/images/polling/ps/ps08202015_Sdeg82k.pdf" (PDF). www.quinnipiac.edu. Retrieved 2015-08-20. 
  18. ^ "Florida Statewide Democratic Primary Election survey" (PDF). Retrieved 2015-07-30. 
  19. ^ "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. 
  20. ^ "Current Democratic and Republican Polling in Florida - Gravis". Retrieved 2015-07-09. 
  21. ^ "Trump, Clinton still in lead in Georgia, but leads are shrinking, poll shows". The Florida Times-Union. Retrieved 2015-09-04. 
  22. ^ . Idaho Politics Weekly http://idahopoliticsweekly.com/politics/636-poll-trump-and-sanders-lead-2016-field-in-idaho. Retrieved 2015-10-15.  Missing or empty |title= (help)
  23. ^ "Donald Trump, Jeb Bush Lead GOP Field in Idaho". Idaho Politics Weekly. Retrieved 2015-08-10. 
  24. ^ Bryan. "Jeb Bush, Hillary Clinton Lead 2016 Presidential Contenders in the Gem State". idahopoliticsweekly.com. 
  25. ^ "Kirk Unpopular, Trails Duckworth" (PDF). Public Policy Polling. Retrieved 2015-07-29. 
  26. ^ http://www.desmoinesregister.com/story/news/elections/presidential/caucus/2015/10/22/iowa-poll-clinton-up-7-but-gap-tightens/74306980/
  27. ^ "NBC News/WSJ/Marist Poll October 2015 Iowa Questionnaire". Retrieved 2015-10-04. 
  28. ^ http://www.publicpolicypolling.com/pdf/2015/PPP_Release_IA_92215.pdf
  29. ^ https://d25d2506sfb94s.cloudfront.net/cumulus_uploads/document/3zimki4xtx/Iowa_Release_20150913.pdf
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