United States Senate election in Idaho, 1986
Symms: 50–60% 60–70% 70–80%
Evans: 50–60% 60–70%
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 won re-election to a second term.