The 1986 United States Senate election in Idaho took place on November 4, 1986 alongside other elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections. Incumbent Republican U.S. Senator Steve Symms narrowly won re-election to a second term. As of 2022, this remains the last time that a Senate election in Idaho has been decided by a single-digit margin. Candidates Democratic John V. Evans, Governor Republican Steve Symms, incumbent U.S. Senator Results See also 1986 United States Senate elections References Idaho 1986 1986 Idaho elections