United States Senate elections, 2018

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United States Senate elections, 2018
United States
← 2016 November 6, 2018 2020 →

Class 1 (33 of the 100) seats in the United States Senate
51 seats needed for a majority
  Majority party Minority party
  Mitch McConnell close-up.JPG Chuck Schumer official photo (cropped).jpg
Leader Mitch McConnell Chuck Schumer
Party Republican Democratic
Leader since January 3, 2007 January 3, 2017
Leader's seat Kentucky New York
Seats before 52 46
Seats up 8 23
Seats needed Steady Increase3*

  Third party
Party Independent
Seats before 2
Seats up 2

2018 Senate Map.png

     Dem. incumbent running      Rep. incumbent running
     Dem. incumbent undeclared      Rep. incumbent undeclared
     Ind. incumbent running

     No election

*Democrats need three seats if the Independents continue to caucus with them.

Majority Leader before election

Mitch McConnell

Elected Majority Leader


Elections to the United States Senate will be held on November 6, 2018, with 33 of the 100 seats in the Senate being contested in regular elections whose winners will serve six-year terms from January 3, 2019, until January 3, 2025. Currently, Democrats are expected to have 23 seats up for election along with 2 independents who caucus with them. Republicans are expected to have 8 seats up for election. The seats up for election in 2018 were last up for election in 2012, although some seats may have special elections if incumbents die or resign, as has already happened in Alabama.[1] Democrats gained a net 2 seats in the 2016 Senate elections.

The United States House of Representatives elections, 39 gubernatorial elections, and many other state and local elections will also be held on this date.

Partisan composition[edit]

Among the 33 Senators up for election in 2018 are 33 Class I Senators up for regular election. These consist of 23 Democrats, 2 independents who caucus with the Senate Democrats, and 8 Republicans. If a Senate vacancy occurs between 2016 and 2018, there may be special elections before or during the 2018 election, depending on state law. The Alabama special election had been scheduled for 2018 but was moved to 2017.

Parties Total
Democratic Republican Independent
Last election (2016) 46 52 2 100
Before this election 46 52 2 100
Not up 23 44 0 67
Class 2 (20142020) 11 22 0 33
Class 3 (2016→2022) 12 22 0 34
Up 23 8 2 33
Class 1 (2012→2018) 23 8 2 33
Special: Class 2 & 3 0 0 0 0
Incumbent retiring 0 0 0 0
Incumbent running 22 7 2 31
Intent undeclared 1 1 0 2

Most recent election predictions[edit]

Democrats are expected to target the Senate seats in Nevada and Arizona.[2] Democrats could also target Texas [3] and Utah. [4] Republicans are expected to target Democratic-held seats in Indiana, Missouri, Montana, North Dakota, and West Virginia, all of which voted for Mitt Romney in the 2012 election and Donald Trump in the 2016 election,[5] as well as seats in Florida, Ohio, Pennsylvania, Wisconsin, and Michigan, all of which voted for Donald Trump in the 2016 election.[6] Republicans could also target seats in Virginia, Maine, and New Jersey.[2] Other races may also become competitive.

State PVI
[citation needed]
Incumbent 2012
Aug 17,
August 18,
August 2,
July 24,
Arizona R+5 Flake, JeffJeff Flake (R) 49% R Lean R Tilt R Lean R Lean R
California D+12 Feinstein, DianneDianne Feinstein (D) 63% D Safe D Safe D Safe D Safe D
Connecticut D+6 Murphy, ChrisChris Murphy (D) 55% D Safe D Safe D Safe D Safe D
Delaware D+6 Carper, TomTom Carper (D) 66% D Safe D Safe D Safe D Safe D
Florida R+2 Nelson, BillBill Nelson (D) 55% D Lean D Tilt D Lean D Lean D
Hawaii D+18 Hirono, MazieMazie Hirono (D) 63% D Safe D Safe D Safe D Safe D
Indiana R+9 Donnelly, JoeJoe Donnelly (D) 50% D Tossup Tossup Tossup Tossup
Maine D+3 King, AngusAngus King (I) 53% I Lean D Safe D Likely D/I Likely D/I
Maryland D+12 Cardin, BenBen Cardin (D) 55% D Safe D Safe D Safe D Safe D
Massachusetts D+12 Warren, ElizabethElizabeth Warren (D) 54% D Safe D Safe D Safe D Safe D
Michigan D+1 Stabenow, DebbieDebbie Stabenow (D) 59% D Likely D Safe D Likely D Likely D
Minnesota D+1 Klobuchar, AmyAmy Klobuchar (D) 65% D Safe D Safe D Safe D Safe D
Mississippi R+9 Wicker, RogerRoger Wicker (R) 57% R Safe R Safe R Safe R Safe R
Missouri R+9 McCaskill, ClaireClaire McCaskill (D) 55% D Tossup Tossup Tossup Tossup
Montana R+11 Tester, JonJon Tester (D) 49% D Likely D Tilt D Lean D Lean D
Nebraska R+14 Fischer, DebDeb Fischer (R) 56% R Safe R Safe R Safe R Safe R
Nevada D+1 Heller, DeanDean Heller (R) 46% R Tossup Tossup Tossup Tossup
New Jersey D+7 Menendez, BobBob Menendez (D) 59% D Likely D Safe D Likely D Safe D
New Mexico D+3 Heinrich, MartinMartin Heinrich (D) 51% D Safe D Safe D Safe D Safe D
New York D+11 Gillibrand, KirstenKirsten Gillibrand (D) 72% D Safe D Safe D Safe D Safe D
North Dakota R+16 Heitkamp, HeidiHeidi Heitkamp (D) 50% D Lean D Tossup Tossup Tossup
Ohio R+3 Brown, SherrodSherrod Brown (D) 51% D Lean D Lean D Lean D Lean D
Pennsylvania EVEN Casey, BobBob Casey (D) 54% D Likely D Lean D Likely D Likely D
Rhode Island D+10 Whitehouse, SheldonSheldon Whitehouse (D) 64% D Safe D Safe D Safe D Safe D
Tennessee R+14 Corker, BobBob Corker (R) 65% R Safe R Safe R Safe R Safe R
Texas R+8 Cruz, TedTed Cruz (R) 57% R Safe R Safe R Likely R Likely R
Utah R+20 Hatch, OrrinOrrin Hatch (R) 65% R Safe R Safe R Safe R Safe R
Vermont D+15 Sanders, BernieBernie Sanders (I) 71% I Safe D Safe D Safe D/I Safe D
Virginia D+1 Kaine, TimTim Kaine (D) 53% D Likely D Likely D Likely D Likely D
Washington D+7 Cantwell, MariaMaria Cantwell (D) 61% D Safe D Safe D Safe D Safe D
West Virginia R+20 Manchin, JoeJoe Manchin (D) 61% D Tossup Tossup Lean D Likely D
Wisconsin EVEN Baldwin, TammyTammy Baldwin (D) 51% D Likely D Tilt D Lean D Likely D
Wyoming R+25 Barrasso, JohnJohn Barrasso (R) 76% R Safe R Safe R Safe R Safe R

Race summaries[edit]

In these general elections, the winners will be elected for the term beginning January 2019.

All of the elections involved the Class 1 seats; ordered by state.

(linked to
summaries below)
Incumbent Intent / Results Candidates
(listed alphabetically)
Senator Party Electoral history
Arizona Flake, JeffJeff Flake Republican 2012 Incumbent running Deedra Abboud (Democratic)[11]
Jeff Flake (Republican)[12]
Doug Marks (Libertarian)[13]
Jim Moss (Democratic)[14]
Chris Russell (Democratic)[15]
Richard Sherzan (Democratic)[16]
Nicolas Tutora (Republican)[17]
Kelli Ward (Republican)[18]
California Feinstein, DianneDianne Feinstein Democratic 1992 (special)
Incumbent running Donald R. Adams (Independent)[19]
Topher Brennan (Democratic)[20]
Jerry Leon Carroll (Independent)[21]
Michael Eisen (Independent)[22]
Dianne Feinstein (Democratic)[23]
Tim Gildersleeve (Independent)[24]
Eugene Patterson Harris (Democratic)[25]
David Hildebrand (Democratic)[26]
Charles Junior Hodge (Independent)[27]
Timothy Charles Kalemkarian (Republican)[28]
Caren Lancona (Republican)[29]
Richard Thomas Mead (Independent)[30]
John Melendez (Democratic)[31]
Douglas Howard Pierce (Democratic)[32]
Stephen James Schrader (Republican)[33]
Steve Stokes (Democratic)[34]
Connecticut Murphy, ChrisChris Murphy Democratic 2012 Incumbent running Ann-Marie Adams (Democratic)[35]
Chris Murphy (Democratic)[36]
Dominic Rapini (Republican)[37]
Delaware Carper, TomTom Carper Democratic 2000
Incumbent running Tom Carper (Democratic)[38]
Chuck Boyce (Republican)[39]
Florida Nelson, BillBill Nelson Democratic 2000
Incumbent running Joe Allen (Independent)[40]
Lateresa Ann Jones (Republican)[41]
Edward Janowski (Independent)[40]
Tamika Lyles (Democratic)[42]
Bill Nelson (Democratic)[43]
Marcia Roberta Thorne (Republican)[44]
Joe Wendt (Libertarian)[40]
Hawaii Hirono, MazieMazie Hirono Democratic 2012 Incumbent running Mazie Hirono (Democratic)[45]
Indiana Donnelly, JoeJoe Donnelly Democratic 2012 Incumbent running Mike Braun (Republican)[46]
Joe Donnelly (Democratic)[47]
Terry Henderson (Republican)[48]
Mark Hurt (Republican)[49]
Luke Messer (Republican)[50]
Todd Rokita (Republican)[51]
Kiel Richard Stone (Republican)[52]
Andrew Takami (Republican)[53]
Andrew U. D. Straw (Disability Party)[54]
Maine King, AngusAngus King Independent 2012 Incumbent running Angus King (Independent)[55]
Eric Brakey (Republican)[56]
Maryland Cardin, BenBen Cardin Democratic 2006
Incumbent's intent unknown Sam Faddis (Republican)[57]
Richard "Rikki" Vaughn (Democratic)[58]
Debbie "Rica" Wilson (Democratic}[58]
Massachusetts Warren, ElizabethElizabeth Warren Democratic 2012 Incumbent running Elizabeth Warren (Democratic)[59]
Shiva Ayyadurai (Republican)[60]
Geoff Diehl (Republican)[61]
Mary Lindstrom (Republican)[62]
Darius Mitchell (Republican)[63]
Allen Waters (Republican)[64]
Heidi Wellman (Republican)[65]
James Devine (Independent)[66]
Michigan Stabenow, DebbieDebbie Stabenow Democratic 2000
Incumbent running Lena Rose Epstein (Republican)[67]
John James (Republican)[68]
Robert Ritchie (Kid Rock) (Republican)
Robert P. Young Jr. (Republican)
Craig Allen Smith (Democratic)[69]
Debbie Stabenow (Democratic)[70]
Marcia Squier (Green)
Minnesota Klobuchar, AmyAmy Klobuchar Democratic 2006
Incumbent running Amy Klobuchar (Democratic)[71]
Jim Newberger (Republican)[72]
Mississippi Wicker, RogerRoger Wicker Republican 2007 (appointed)
2008 (special)
Incumbent running Jensen Bohren (Democratic)[73]
Roger Wicker (Republican)[74]
Missouri McCaskill, ClaireClaire McCaskill Democratic 2006
Incumbent running Angelica Earl (Democratic)[75]
Claire McCaskill (Democratic)[76]
Tony Monetti (Republican)[77]
Austin Petersen (Republican)[78]
Montana Tester, JonJon Tester Democratic 2006
Incumbent running Troy Downing (Republican)[79]
Ron Murray (Republican)[80]
Albert Olszewski (Republican)[81]
Matthew Rosendale (Republican)[82]
Jon Tester (Democratic)[83]
Nebraska Fischer, DebDeb Fischer Republican 2012 Incumbent running Deb Fischer (Republican)[84]
Larry Marvin (Democratic)[85]
Nevada Heller, DeanDean Heller Republican 2011 (appointed)
Incumbent running Jay Craddock (Democratic) [86]
Dean Heller (Republican)[87]
Bobby Mahendra (Democratic)[88]
Jacky Rosen (Democratic)[89]
Jesse Sbaih (Democratic)[90]
Danny Tarkanian (Republican)[91]
New Jersey Menendez, BobBob Menendez Democratic 2006 (appointed)
Incumbent running Lisa McCormick (Democratic)[92]
Bob Menendez (Democratic)[93]
Sean A. Thom (Democratic)[94]
New Mexico Heinrich, MartinMartin Heinrich Democratic 2012 Incumbent running Martin Heinrich (Democratic)[95]
Mick Rich (Republican)[96]
New York Gillibrand, KirstenKirsten Gillibrand Democratic 2009 (appointed)
2010 (special)
Incumbent running Kirsten Gillibrand (Democratic)[97]
Rafael Arden Jones Sr. (Republican)[98]
David A. Webber (Republican)[99]
North Dakota Heitkamp, HeidiHeidi Heitkamp Democratic 2012 Incumbent running Tom Campbell (Republican)[100]
Heidi Heitkamp (Democratic)[101]
Dustin Peyer (Democratic)[102]
Ohio Brown, SherrodSherrod Brown Democratic 2006
Incumbent running Sherrod Brown (Democratic)[103]
Michael Gibbons (Republican)[104]
Josh Mandel (Republican)[105]
Pennsylvania Casey, BobBob Casey Democratic 2006
Incumbent running Paul Addis (Republican)[106]
Cynthia Ayers (Republican)[107]
Jeff Bartos (Republican)[108]
Bob Casey Jr. (Democratic)[109]
Jim Christiana (Republican)[110]
Paul DeLong (Republican)[111]
Dale Kerns (Libertarian)[112]
Bobby Lawrence (Republican)[113]
Rick Saccone (Republican)[114]
Andrew Shecktor (Republican)[115]
Rhode Island Whitehouse, SheldonSheldon Whitehouse Democratic 2006
Incumbent running Robert Flanders (Republican)[116]
Robert Nardolillo (Republican)[117]
Sheldon Whitehouse (Democratic)[118]
Tennessee Corker, BobBob Corker Republican 2006
Incumbent's intent unknown Larry Crim (Republican)[119]
James Mackler (Democratic)[120]
Texas Cruz, TedTed Cruz Republican 2012 Incumbent running Ted Cruz (Republican)[121]
Stefano de Stefano (Republican)[122]
Aaron Gwaltney (Independent)[123]
Irasema Hernandez (Democratic)[124]
Dan McQueen (Republican)[125]
Beto O'Rourke (Democratic)[126]
Dustin Ray Webb (Democratic)[127]
Utah Hatch, OrrinOrrin Hatch Republican 1976
Incumbent running Orrin Hatch (Republican)[128]
Danny Drew (Democratic)[129]
Mitchell Kent Vice (Democratic)[130]
Jenny Wilson (Democratic) [131]
Craig Bowden (Libertarian)[132]
Vermont Sanders, BernieBernie Sanders Independent 2006
Incumbent running Bernie Sanders (Independent)[133]
Jon Svitavsky (Democratic)[134]
Folasade Adeluola (Democratic)[134]
Virginia Kaine, TimTim Kaine Democratic 2012 Incumbent running Tim Kaine (Democratic)[135]
Corey Stewart (Republican)[136]
Ron Wallace (Republican)[137][138]
Washington Cantwell, MariaMaria Cantwell Democratic 2000
Incumbent running Maria Cantwell (Democratic)[139]
Jennifer "GiGi" Ferguson (Democratic)[140]
Clay Johnson (Independent)[141]
West Virginia Manchin, JoeJoe Manchin Democratic 2010 (special)
Incumbent running Bo Copley (Republican)[142]
Scott Ernst (Republican)[143][144]
Evan Jenkins (Republican)[145]
Joe Manchin (Democratic)[146]
Patrick Morrisey (Republican)[147]
Paula Jean Swearengin (Democratic)[148]
Wisconsin Baldwin, TammyTammy Baldwin Democratic 2012 Incumbent running Tammy Baldwin (Democratic)[149]
Kevin Nicholson (Republican)[150]
John Schiess (Republican)[151]
Mary Jo Walters (Democratic)[152]
Wyoming Barrasso, JohnJohn Barrasso Republican 2007 (appointed)
2008 (special)
Incumbent running John Barrasso (Republican)[153]
State Senator Party Electoral
Intent / Results Candidates

Complete list of races[edit]

Thirty-three seats are up for election in 2018:

  • Twenty-two Democrats are running for re-election.
  • One Democrat may seek re-election.
  • Two independents are running for re-election.
  • Seven Republicans are running for re-election.
  • One Republican may seek re-election.


One-term Republican Senator Jeff Flake was elected with 49% of the vote in 2012. He will be 55 years old in 2018. He is running.[12]

Former state senator Kelli Ward[18] and pharmacist Nicolas Tutora[17][154] are challenging Flake in the Republican primary.

Deedra Abboud,[11] Jim Moss,[14] Chris Russell,[15] and Richard Sherzan[16] are running for the Democratic nomination. State Representative & Surgeon Dr. Randall Friese[155] who treated Former U.S. Representative Gabrielle Giffords is also a potential Democratic candidate.


Four-term Democratic Senator Dianne Feinstein won a special election in 1992 and was elected to full terms in 1994, 2000, 2006, and 2012. She will be 85 years old in 2018. She is running for re-election.[23]

Democrats challenging Dianne Feinstein include Topher Brennan,[20] Eugene Patterson Harris,[25] David Hildebrand,[156][26] John "Stuttering John" Melendez,[31] Douglas Howard Pierce,[32] and 2016 candidate Steve Stokes.[34]

Republican candidates include Timothy Charles Kalemkarian,[157] Caren Lancona,[158] and Stephen James Schrader.[159]

Independent candidates include biologist Michael Eisen,[22] Donald R. Adams,[19] Jerry Leon Carroll,[21] Tim Gildersleeve,[24] Charles Junior Hodge,[27] and Richard Thomas Mead.[30]


One-term Democratic Senator Chris Murphy was elected with 55% of the vote in 2012. He will be 45 years old in 2018. He is running for reelection.[36] He is being challenged for the Democratic nomination by Ann-Marie Adams.[160]

Businessman Dominic Rapini is seeking the Republican nomination.[37]


Three-term Democratic Senator Tom Carper won re-election with 66% of the vote in 2012. He will be 71 years old in 2018. He announced he was running for re-election during an interview on MSNBC on July 24, 2017.[38]

Businessman Chuck Boyce is running for the Republican nomination.[39]


Three-term Democratic Senator Bill Nelson was re-elected with 55% of the vote in 2012. Nelson will be 76 years old in 2018. He has strongly hinted he will seek re-election to a fourth term in office.[161][43] He is being challenged for the Democratic nomination by Tamika Lyles.[42]

Latersa Ann Jones[41] and Marcia Roberta Thorne[44] are running for the Republican nomination. Florida Governor Rick Scott is seen as potential Republican candidate to challenge Nelson. Scott will be 65 years old in 2018. First elected in 2010 and re-elected in 2014, Scott's term as Governor of Florida is set to end by January 2019, due to term limits.[162]

Joe Wendt is seeking the Libertarian Party nomination, while Joe Allen and Edward Janowski are running as independents.[40]


One-term Democratic Senator Mazie Hirono was elected with 63% of the vote in 2012. She will be 71 years old in 2018.


One-term Democratic Senator Joe Donnelly was elected with 50.04% of the vote in 2012. He will be 63 years old in 2018. He is running.[47]

Congressmen Luke Messer[50] and Todd Rokita,[51] State Representative Mike Braun,[46] attorney Mark Hurt,[49][163][164] director of Purdue Polytechnic Institute Andrew Takami,[53] Kiel Richard Stone,[52] and Terry Henderson[48] are running for the Republican nomination.

Disability Party candidate Andrew U. D. Straw has registered his campaign officially with the Secretary of the U.S. Senate.[165] Straw has run for U.S. House twice on disability platforms, once in Indiana's Second District and once in Illinois' Eighth District.[166]


One-term Independent Senator Angus King was elected in a three-way race with 53% of the vote in 2012. King has caucused with the Democratic Party since taking office in 2013, but he has left open the possibility of caucusing with the Republican Party in the future.[167] This Senate election is scheduled to be the first in Maine to be conducted with ranked choice voting, as opposed to a simple plurality, after voters passed a citizen referendum approving the change in 2016.[168] An advisory opinion by the Maine Supreme Judicial Court holding that ranked choice voting would be unconstitutional only affects state office elections, but some legislators seek to repeal the measure in full.[169][170]

King has indicated he will seek reelection.[171] [55] He will be 74 years old in 2018.

Former Democratic State Representative Diane Russell is considering running.[172]

State Senator Eric Brakey is running for the Republican nomination.[56] Republican Governor of Maine Paul LePage announced in May he was not going to run[173] but in a July radio interview said, "I'm going to watch what Eric Brakey's doing, and if he doesn't start resonating pretty quick, there's a possibility I might change my mind."[174]


Two-term Democratic Senator Ben Cardin was re-elected with 56% of the vote in 2012. He will be 75 years old in 2018.

Democrats running for the seat include Richard "Rikki" Vaughn and Debbie "Rica" Wilson.[58]

Sam Faddis is seeking the Republican nomination.[57]


One-term Democratic Senator Elizabeth Warren was elected with 54% of the vote in 2012. She will be 69 years old in 2018. She is running.[59]

State Representative Geoff Diehl,[61] Shiva Ayyadurai,[60] former Romney aide Mary Lindstrom,[62] Darius Mitchell,[63] Allen Waters,[64] and Heidi Wellman[65] are running for the Republican nomination.

John Devine[66] is running as an independent.


Three-term Democratic Senator Debbie Stabenow was re-elected with 59% of the vote in 2012. She will be 68 years old in 2018. She is running.[70] She is being challenged in the Democratic primary by Craig Allen Smith.[69]

On the Republican side, Lena Epstein who co-chaired the Donald Trump campaign in Michigan,[175] businessman and Iraq veteran John James,[68] and retired Michigan Supreme Court chief justice Robert P. Young Jr.[176] are running.


Two-term Democratic Senator Amy Klobuchar was re-elected with 65% of the vote in 2012. She will be 58 years old in 2018. She is running.[71]

State Representative Jim Newberger[72] is running for the Republican nomination.


One-term Republican Senator Roger Wicker won re-election with 57% of the vote in 2012. He was appointed in 2007 and won a special election in 2008 to serve the remainder of Trent Lott's term. He will be 67 years old in 2018. He is running.[74]

Jensen Bohren[73] is seeking the Democratic nomination.


Two-term Democratic Senator Claire McCaskill was re-elected with 55% of the vote in 2012. She will be 65 years old in 2018. She is running.[76] She is being challenged in the Democratic primary by Angelica Earl.[75]

The fundraising of Republican Representative Ann Wagner was being interpreted to mean that she might run against Sen. McCaskill,[177] but she announced she will seek re-election in the Second Congressional District.[178] Assistant dean of aviation at University of Central Missouri Tony Monetti[77] and Libertarian presidential candidate in 2016 Austin Petersen[78] are running for the Republican nomination. State Attorney General Josh Hawley has set up an exploratory committee to run for the seat.


Two-term Democratic Senator Jon Tester was re-elected with 49% of the vote in 2012. He will be 62 years old in 2018. He is running.[83]

State Auditor Matthew Rosendale,[82][179] State Senator Albert Olszewski,[81] Troy Downing,[79] and Ron Murray[80] are running for the Republican nomination. State Secretary of State Corey Stapleton is also a potential Republican candidate.[180] Ryan Zinke resigned from the House of Representatives to become United States Secretary of the Interior. He could step down from that position to run for the Senate seat.


One-term Republican Senator Deb Fischer was elected with 56% of the vote in 2012. She will be 67 years old in 2018. She is running.[84]

Larry Marvin, who was a candidate in 2008, 2012, and 2014, is running again for the Democratic nomination again.[85]


One-term Republican Senator Dean Heller was elected with 46% of the vote in 2012. He had been appointed to the seat in 2011. He will be 58 years old in 2018. Heller considered running for governor, but has since chosen to seek reelection.[181][182][87] Danny Tarkanian is challenging Heller in the Republican primary.[91]

Representative Jacky Rosen,[89] Jay Craddock,[86] Sujeet "Bobby" Narendra Mahendra,[88][53] and Jesse Sbaih[90] are running for the Democratic nomination.

New Jersey[edit]

Two-term Democratic Senator Bob Menendez was re-elected with 59% of the vote in 2012. Menendez was originally appointed to the seat in January 2006. He will be 64 years old in 2018. He is running.[93]

Democrat Sean A. Thom is running.[94]

New Mexico[edit]

One-term Democratic Senator Martin Heinrich was elected with 51% of the vote in 2012. He will be 47 years old in 2018. He is running.[95]

Mick Rich is seeking the Republican nomination.[96]

New York[edit]

One-term Democratic Senator Kirsten Gillibrand was elected with 72% of the vote in 2012. She had previously been appointed to the seat in 2009, and won a special election to remain in office in 2010. She will be 51 years old in 2018. She is running.[97]

Former United States Ambassador to Japan Caroline Kennedy, daughter of former President John F. Kennedy[183] is reportedly considering running as a Democrat, 9 years after declining to replace Hillary Clinton's vacant seat after becoming U.S. Secretary of State.

Rafael Arden Jones Sr.[98] and David A. Webber[99] are running for the Republican nomination.

North Dakota[edit]

One-term Democratic Senator Heidi Heitkamp was elected with 50% of the vote in 2012. She will be 63 years old in 2018. She is running.[101]

Dustin Peyer is running for the Democratic nomination.[102]

State Senator Tom Campbell[100] is running for the Republican nomination.


Two-term Democratic Senator Sherrod Brown was re-elected with 51% of the vote in 2012. He will be 65 years old in 2018. He is running.[103]

Ohio State Treasurer Josh Mandel[105] and investment banker Michael Gibbons[104] are running for the Republican nomination.


Two-term Democratic Senator Bob Casey, Jr. was re-elected with 54% of the vote in 2012. He will be 58 years old in 2018. He is running.[109]

Republican candidates include Pennsylvania House of Representatives members Rick Saccone[114] and Jim Christiana,[110] Berwick councilman Andrew Shecktor,[115] Paul Addis,[106] Cynthia Ayers,[107] Jeff Bartos,[108], Paul DeLong,[111] and Robert "Bobby" Lawrence.[113]

In addition, Libertarian candidate Dale Kerns has announced his candidacy for this seat. Congressman Lou Barletta is also expected to seek the Republican nomination.

Rhode Island[edit]

Two-term Democratic Senator Sheldon Whitehouse was reelected with 64% of the vote in 2012. He will be 63 years old in 2018. He is running.[118]

State Representative Robert Nardolillo[117] and former Rhode Island Supreme Court Associate Justice Robert Flanders[116] are running for the Republican nomination.


Two-term Republican Senator Bob Corker was re-elected with 65% of the vote in 2012. He will be 66 years old in 2018. Corker may run for Governor of Tennessee in 2018.[184][185][186] Senator Corker has also filed his Statement of Candidacy with the Secretary of the U.S. Senate to run for reelection to the U.S. Senate seat he currently holds in 2018.[187]

Larry Crim, a perennial candidate who ran as a Democrat in 2012 and 2014, is running for the Republican nomination.[119]

James Mackler is seeking the Democratic nomination.[120]


One-term Republican Senator Ted Cruz was elected with 57% of the vote in 2012. He will be 48 years old in 2018. He is running.[121][188]

Houston energy attorney Stefano de Stefano[122] and former mayor of Corpus Christi Dan McQueen[125] are also seeking the Republican nomination.

U.S. Representative Beto O'Rourke is seeking the Democratic nomination.[189] Other Democrats who are running include Irasema Ramirez Hernandez[124] and Dustin Ray Webb.[127]

Aaron Gwaltney is running as an independent.[123][190]


Seven-term Republican Senator Orrin Hatch was re-elected with 65% of the vote in 2012. Hatch is the President pro tempore of the United States Senate, as well as the second most-senior Senator. He will be 84 years old in 2018. Before the 2012 election, Hatch said that he would retire at the end of his seventh term if he was re-elected.[191] However he has since "left the door ajar", but denied that he had changed his mind until March 9, 2017, when he announced his re-election campaign.[128][192]

Professor James Singer was running for the Democratic nomination, but he dropped out and endorsed Salt Lake County Councilwoman Jenny Wilson, who made her Senate bid official on July 17, 2017. [193][194][131] Danny Drew[129] and Mitchell Kent Vice[130] are also running for the Democratic nomination.

Craig Bowden is running for the Libertarians.[132]


Two-term Independent Senator Bernie Sanders was re-elected with 71% of the vote in 2012. Sanders, one of two independent members of Congress, has caucused with the Democratic Party since taking office in 2007. In November 2015, Sanders announced his plans to run as a Democrat rather than an Independent in all future elections. He will be 77 years old in 2018.[195] On July 28, 2016, Sanders announced he would return to the Senate as an Independent and two days later in an interview on Real Time with Bill Maher that he would run for re-election.[133]

In 2016, activist and journalist Al Giordano stated his intention to challenge Sanders for the Democratic nomination to protest Sanders's 2016 presidential campaign, which Giordano claims has divided the Democratic Party.[196][197][198] In 2017, however, Giordano announced he would not run for the seat. [199]


One-term Democratic Senator Tim Kaine was elected with 53% of the vote in 2012. He will be 60 years old in 2018. He is running.[200][135]

Prince William County Supervisor Corey Stewart[136] and Ron Wallace are seeking the Republican nomination.[137][138]


Three-term Democratic Senator Maria Cantwell was re-elected with 61% of the vote in 2012. She will be 60 years old in 2018. She is running.[139]

Jennifer "GiGi" Ferguson is running.[201]

West Virginia[edit]

One-term Democratic Senator Joe Manchin was elected with 61% of the vote in 2012. He originally won the seat in a 2010 special election. He will be 71 years old in 2018. Manchin is running for re-election. Environmental activist Paula Jean Swearengin is also running for the Democratic nomination.[146][202]

Representative Evan Jenkins[145], West Virginia Attorney General Patrick Morrisey,[147] coal miner Bo Copley[142], and Scott Ernst[203][204] are running for the Republican nomination.


One-term Democratic Senator Tammy Baldwin was elected with 51% of the vote in 2012. She will be 56 years old in 2018. She is running.[149] Mary Jo Walters, a Democratic candidate for Lieutenant Governor in the 2014 primary,[205] and later that year a write-in candidate for Governor[206] is also seeking the Democratic nomination.[152]

Businessman and member of Wisconsin Board of Veterans Affairs Kevin Nicholson[150] and John Schiess[151] are running for the Republican nomination.


One-term Republican Senator John Barrasso was elected with 76% of the vote in 2012. Barrasso was appointed to the seat in 2007, and won a special election in 2008. He will be 66 years old in 2018. He is running.[153]

See also[edit]


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