The 2018 United States Senate election in Wyoming took place on November 6, 2018, to elect a member of the United States Senate to represent the State of Wyoming. The primary election took place on August 21, 2018. Republican John Barrasso won re-election with 67% percent of the vote, the lowest percentage of his four U.S. Senate campaigns and the closest a Democrat has come to winning a Senate seat in the state since the 1996 election, and the first time since that election in which Democrats managed to even win counties in the state, those being Teton and Albany, and the first time that the Democratic candidate won any counties for this seat since 1994. Trauner was the first Democrat to win Teton County in a Senate contest since 1940, and the first ever losing Democrat to do so.
In 2012, incumbent Republican John Barrasso was re-elected with 76% of the vote. Heavily rural, Wyoming has the smallest population of any state and is considered the most Republican state in the nation. It had not elected a Democratic Senate candidate since 1970. In 2008, Republican presidential nominee John McCain carried the state with 64% of the vote. Republican Mitt Romney won it in 2012 with 68% of the vote, and Republican Donald Trump won it in 2016 with 67% of the vote.
Counties that flipped from Republican to Democratic
Official campaign websites