The 1986 United States Senate election in Wisconsin was held on November 3, 1986. Incumbent Republican U.S. Senator Bob Kasten won re-election to a second term. This would be the last time a Republican would win a Senate race in Wisconsin until Ron Johnson in 2010.
Democratic primary
Candidates
Roman R. Blenski, perennial candidate and former State Senator from Milwaukee
Matthew J. Flynn, former chair of the Wisconsin Democratic Party
Ed Garvey, former Deputy Wisconsin Attorney General and executive director of the NFLPA