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What States are having Senate Elections in 2018?


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What States are having Senate Elections in 2018?

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Map of USA highlighting states going to Senate elections in 2018

Senate elections will be held on November 6, 2018, when 33 seats of the 100 seats will be contested along with one seat through a special election. The elected class-1 Senators would serve for a term of six years beginning January 3, 2019, to January 3, 2025. Minnesota is the state having Special election for Senator seat in 2018, since Democratic Senator Al Franken resigned and Lt. Governor Tina Smith (D) was appointed as Interim Senator by the Governor.

The states holding the Senate elections are:

State Incumbent Party
Arizona  Jeff Flake  Republican
Connecticut  Chris Murphy  Democratic
California  Dianne Feinstein  Democratic
Delaware  Tom Carper  Democratic
Florida  Bill Nelson  Democratic
Hawaii  Mazie Hirono  Democratic
Indiana  Joe Donnelly  Democratic
Maine  Angus King  Independent
Maryland  Ben Cardin  Democratic
Massachusetts  Elizabeth Warren  Democratic
Michigan  Debbie Stabenow  Democratic
Minnesota  Amy Klobuchar  Democratic
Mississippi  Roger Wicker  Republican
Montana  Jon Tester  Democratic
Missouri  Claire McCaskill  Democratic
Nebraska  Deb Fischer  Republican
Nevada  Dean Heller  Republican
New Mexico  Martin Heinrich  Democratic
New Jersey  Bob Menendez  Democratic
New York  Kirsten Gillibrand  Democratic
North Dakota  Heidi Heitkamp  Democratic
Ohio  Sherrod Brown  Democratic
Rhode Island  Sheldon Whitehouse  Democratic
Pennsylvania  Bob Casey Jr.  Democratic
Texas  Ted Cruz  Republican
Tennessee  Bob Corker  Republican
Utah  Orin Hatch  Republican
Vermont  Bernie Sanders  Independent
Virginia  Tim Kaine  Democratic
Washington  Maria Cantwell  Democratic
Wyoming  John Barrasso  Republican
Wisconsin  Tammy Baldwin  Democratic
West Virginia Joe Manchin  Democratic

Why is the Senate election in 2018 so important?

In the Senate, the Republican Party holds the majority with 51 seats, the Democratic Party 47 seats, and Independents hold two seats and caucus with the Democratic Party. The Democratic Party requires two seats to get back the majority they lost in 2014, and so the Republican Party can be expected to defend their majority aggressively. The November elections will be a close contest.
The elections hold a more significant challenge for the Democratic Party as they will be defending 25 seats, including the two independent seats in their favor. The Republicans have to defend just eight seats.

The Challenge

Nine states have a Democratic incumbent but were won by Donald Trump.

The Democratic Party will have to overcome the Republican challenge in nine states where the incumbent is Democratic, but the state was won by Donald Trump during the 2016 elections. These states are:


  • Florida
  • Ohio
  • Montana
  • Pennsylvania
  • Wisconsin
  • West Virginia
  • North Dakota
  • Michigan
  • Missouri

Nevada is the only state won by Hilary Clinton in 2016 where the incumbent was a Republican. There are over 13 states with a Democratic incumbent having a Republican Governor.

The Democratic Party will face a strong challenge from the Republican Party in these states where the Governor is a Republican.

The states are:

  • Florida
  • Ohio
  • Maine
  • New Mexico
  • Missouri
  • Massachusetts
  • Indiana
  • North Dakota
  • Vermont
  • New Jersey
  • Wisconsin
  • Maryland
  • Michigan

Two states with a Republican incumbent

The Republican Party will have to defend these two states where the Democratic Party is expected to mount a strong challenge. The states are:

  • Arizona
  • Nevada

There are no states with a Republican incumbent and Democratic governor

The advantage lies with the Republican Party since they have to defend lesser seats than the Democratic Party.

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