2018 United States Senate election in Montana


The 2018 United States Senate election in Montana was held on November 6, 2018, to elect a member of the United States Senate to represent the State of Montana, concurrently with other elections to the United States Senate, elections to the United States House of Representatives, and various state and local elections.
In spite of the fact that Montana went for Donald Trump by around a margin of 20 percent two years prior, incumbent Democratic Senator Jon Tester won reelection to a third term, defeating Republican State Auditor Matt Rosendale. Rosendale conceded the election to Tester on November 7, 2018. This was the first Senate election in which Tester received a majority of votes cast rather than a simple plurality.

Democratic primary

Candidates

Nominated

Results

Republican primary

Candidates

Nominated

Polling

Results

Libertarian primary

Candidates

Nominated

In October 2018, Breckenridge told a reporter from the Associated Press that he opposed the use of dark money in politics. Breckenridge said that he realistically anticipated only receiving three or four percent of the vote in the general election, and that he endorsed Rosendale's efforts to stop the use of dark money in politics. The Associated Press interpreted Breckenridge's comments as a statement that Breckenridge was dropping out of the race and endorsing Rosendale. Breckenridge later stated that his use of the word "endorse" referred only to stopping the use of dark money in politics, and said he was still running for the Senate.

Green Party

Although Kelly won the Green Party nomination, a Montana district court judge ruled that Kelly had insufficient signatures to get on the ballot. As a result, Kelly did not appear on the November ballot as the Green Party nominee.

Candidates

Nominee (removed from ballot)

General election

Debates

Endorsements

Fundraising

Polling

Hypothetical polling------

Results

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