1978 United States Senate election in Montana
The 1978 United States Senate election in Montana took place on November 7, 1978. Following the death of United States Senator Lee Metcalf on January 12, 1978, Montana Supreme Court Chief Justice Paul G. Hatfield was appointed to serve for the remainder of Metcalf's term. Hatfield opted to run for re-election, but was overwhelmingly defeated in the Democratic primary by United States Congressman Max Baucus of the 1st congressional district. Baucus advanced to the general election, where he was opposed by Larry R. Williams, an author and the Republican nominee. Baucus ended up defeating Williams by a solid margin to win his first term in the Senate, and, following Hatfield's resignation on December 12, 1978, he began serving his first term in the Senate.
Jon Tester
Tester was first elected to the Senate in 2006, defeating Republican incumbent Conrad Burns in one of the closest Senate races of that year. He narrowly won reelection in 2012 against U.S. Representative Denny Rehberg, and in 2018 against Montana State Auditor Matt Rosendale. Tester was previously the president of the Montana Senate and worked as a music teacher and farmer. He became Montana's senior senator in 2014 following Max Baucus's departure.