United States Senate Election, 2018
United States Flag
2016November 6, 2018 2020

Class 1 (34 of the 102) seats in the United States Senate, and 2 Special Elections
52 seats needed for a majority.
Sen Mitch McConnell official
Leader Mitch McConnell Chuck Schumer
Party Republican Democratic
Leader's Seat Kentucky New York
Seats Before 52 46
Seats After 51 47
Net Gain Decrease1 Increase1
Jeff Flake official Senate photo
Leader Jeff Flake
Party Independent Libertarian
Leader's Seat Arizona
Seats Before 2 0
Seats After 2 1
Net Gain - Increase1

The United States Senate Elections of 2018 took place in the middle of Donald Trump's first term. The elections are the first to have Puerto Rico participate, and thus, it elected both of its senators at once. The Democrats were under pressure, as 24 of their 48 seats were up for election, and that, coupled with the nomination of Hillary Clinton for President in 2016, gave the Republicans a golden opportunity to make massive gains on the Democrats. However, that didn't happen, as the Republican Party's popularity plummeted after Trump's repeated airstrikes in Syria, which prevented all but a few Senate Seats from changing hands. This Senate also had the most political parties of any senate in US history since 1970, with 4 political parties in the Senate. Mitch McConnell kept his title as majority leader because Jeff Flake, who got re-elected as a Libertarian, decided to caucus with the Republicans, coupled with Puerto Rico electing 1 Republican and 1 Democrat to the Senate. The most controversial election was in Virginia, where incumbent Tim Kaine got the same amount of votes as Barbara Comstock, despite Kaine comforably leading Comstock in the polls. A special election was held on February 13 to select a winner, which Tim Kaine won by 0.007%. Kaine was inaugurated to a second term on February 15. Another controversial election was in Missouri, where Jason Kander, who defeated incumbent Claire McCasskill in the primary, lost to State Attorney General Josh Hawley by less than 100 votes out of over 2.8 million votes cast. Kander requested a recount. The recount happened, and Kander won by 1,405 votes. Arizona was also controversial, as Incumbent Jeff Flake dropped out of the Republican primary and ran as a Libertarian due to bad polling numbers. He was trailing in all the polls behind Democrat Krysten Sinema and Republican Jeff DeWit, but he won with a third of the vote.


     Democratic gain      Democratic hold      Republican gain      Republican hold      Independent hold      Libertarian gain

Special Elections

Winning candidate in bold
State Incumbent Party Previous Elections Result Candidates
Alabama (Special: Class 2) Luther Strange Republican 2017 (Appointed) Appointee elected to finish term Luther Strange (i) (Republican)
Terri Sewell (Democratic)
Arizona Jeff Flake Republican 2012 Incumbent re-elected,

Libertarian Gain

Jeff Flake (i) (Libertarian)
Krysten Sinema (Democratic)
Jeff DeWit (Republican)
Gary Swing (Green)
California Dianne Feinstein Democratic 1992 (Special)
Incumbent re-elected Dianne Feinstein (i) (Democratic)
Eric Garcetti (Democratic)
Connecticut Chris Murphy Democratic 2012 Incumbent re-elected Chris Murphy (i) (Democratic)
Chris Shays (Republican)
Delaware Tom Carper Democratic 2000
Incumbent re-elected Tom Carper (i) (Democratic)
Ken Simpler (Republican)
Florida Bill Nelson Democratic 2000
Incumbent lost re-election, Tea Party Gain Ben Nelson (i) (Democratic)
Rick Scott (Republican)
Hawaii Mazie Hirono Democratic 2012 Incumbent re-elected Mazie Hirono (i) (Democratic)
Sam Slom (Republican)
Indiana Joe Donnelly Democratic 2012 Incumbent got re-elected Joe Donnelly (i) (Democratic)
Brian Bosma (Republican)
Maine Angus King Independent 2012 Incumbent re-elected Angus King (i) (Independent)
Paul LePage (Republican)
Diane Russell (Democratic)
Maryland Ben Cardin Democratic 2006
Incumbent re-elected Ben Cardin (i) (Democratic)
Massachusetts Elizabeth Warren Democratic 2012 Incumbent re-elected Elizabeth Warren (i) (Democratic)
Geoff Diehl (Republican)
Michigan Debbie Stabenow Democratic 2000
Incumbent re-elected Debbie Stabenow (i) (Democratic)
Ted Nugent (Republican)
Minnesota Amy Klobuchar Democratic 2006
Incumbent re-elected Amy Klobuchar (i) (Democratic)
Erik Paulsen (Republican)
Mississippi Roger Wicker Republican 2006
Incumbent re-elected Roger Wicker (i) (Republican)
Roger Weiner (Democratic)
Missouri Claire McCaskill Democratic 2006
Incumbent lost re-nomination, Democratic hold Jason Kander (Democratic)
Josh Hawley (Republican)
Austin Peterson (Libertarian)
Montana Jon Tester Democratic 2006
Incumbent re-elected Jon Tester (i) (Democratic)
Greg Gianforti (Republican)
Nebraska Deb Fischer Republican 2012 Incumbent re-elected Deb Fischer (i) (Republican)
Steven Lustgarten (Democratic)
Nevada Dean Heller Republican 2011 (Appointed)
Incumbent lost re-election
Democratic gain
Dina Titus (Democratic)
Dean Heller (i) (Republican)
New Jersey Bob Menendez Democratic Jan 2006 (Appointed)
Nov 2006
Incumbent re-elected Thomas Kean, Jr. (Tea Party)
Joseph M. Kyrillos (Republican)
New Mexico Martin Heinrich Democratic 2012 Incumbent lost re-election
Libertarian gain
Gary Johnson (Libertarian)
Steve Pearce (Tea Party)
Janice Arnold-Jones (Republican)
New York Kirsten Gillibrand Democratic 2009 (Appointed)
2010 (Special)
Incumbent re-elected Chris Gibson (Tea Party)
John Catisimatidis (Republican)
North Dakota Heidi Heitkamp Democratic 2012 Incumbent lost re-election
Tea Party gain
Drew Wrigley (Tea Party)
Ed Schafer (Republican)
Ohio Sherrod Brown Democratic 2006
Incumbent lost re-election
Tea Party gain
John Kasich (Tea Party)
Sarah LaTourette (Republican)
Pennsylvania Bob Casey Democratic 2006
Incumbent re-elected Charlie Dent (Tea Party)
Jim Cawley (Republican)
Rhode Island Sheldon Whitehouse Democratic 2006
Incumbent re-elected Brendan Doherty (Tea Party)
Joseph Almond (Republican)
Tennessee Bob Corker Republican 2006
Incumbent retired
Tea Party gain
Bill Haslam (Tea Party)
Karl Dean (Democratic)
Bill Hagerty (Republican)
Texas Ted Cruz Republican 2006
Incumbent lost re-election
Democratic gain
Joaquin Castro (Democratic)
Ted Cruz (Tea Party)
George P. Bush (Independent)
Jeb Hensarling (Republican)
Utah Orrin Hatch Republican 1976
Incumbent retired
Tea Party gain
Josh Romney (Tea Party)
Jon Huntsman, Jr. (Independent)
Jim Mathenson (Democratic)
Thomas Wright (Republican)
Vermont Peter Welch Democratic 2017 (Special) Incumbent re-elected Heidi Scheuermann (Tea Party)
Cris Ericson (Marijuana)
John MacGovern (Republican),br />Peter Moss (Independent)
Virginia Barbra Comstock Tea Party 2017 (Special) Incumbent re-elected Anne Holton (Democratic)
Benjamin Cline (Republican)
Washington Maria Cantwell Democratic 2000
Incumbent re-elected Doc Hastings (Tea Party)
Mike the Mover (Republican)
West Virginia Joe Manchin Democratic 2010 (Special)
Incumbent re-elected David McKinley (Tea Party)
Mary Lou Retton (Republican)
Wisconsin Tammy Baldwin Democratic 2012 Incumbent re-elected Rebecca Kleefisch (Tea Party)
Sean Duffy (Republican)
Wyoming John Barrasso Republican 2007 (Appointed)
2008 (Special)
Incumbent re-elected
Tea Party gain
John Barrasso (Tea Party)
Pete Gosar (Democratic)
Taylor Haynes (Republican)

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.