The 1986 United States Senate election in California took place on November 4, 1986. Incumbent Democratic U.S. Senator Alan Cranston narrowly won re-election to a fourth and final term over Republican U.S. Congressman Ed Zschau . This was the last time where both major party nominees for the Class 3 Senate seat in California were men until 2022 .
1986 United States Senate election in California
County results Cranston: 40-50% 50–60% 60–70% 70–80%
Zschau: 40–50% 50–60% 60–70%
John Hancock Abbott, perennial candidate
Robert John Banuelos, resident of Costa Mesa
Alan Cranston , incumbent Senator
Charles Greene
Brian Lantz, candidate for Mayor of San Francisco in 1983
William B. Allen , professor at Harvey Mudd College and member of the National Council on the Humanities
Michael D. Antonovich , Los Angeles County Supervisor and former State Assemblyman
Eldridge Cleaver , author and former Black Panther
Edward M. Davis , State Senator and former chief of the Los Angeles Police Department
Bobbi Fiedler , U.S. Representative from Encino
Bruce Herschensohn , political commentator for KABC-TV in Los Angeles
Joe Knowland , actor, publisher of The Oakland Tribune and son of former Senator William Knowland
Art Laffer , economic advisor to President Ronald Reagan
George Montgomery
Robert W. Naylor , State Assemblyman from Menlo Park
William H. Pemberton, candidate for Senate in 1982
John W. Spring
Ed Zschau , U.S. Representative from Los Altos
Peace and Freedom primary
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Lenni Brenner , Trotskyist anti-war activist and writer
Paul Kangas, private investigator and perennial candidate
Shift by county Trend by county
Republican — >15%
Republican — 12.5−15%
Republican — 10−12.5%
Republican — 7.5−10%
Republican — 5−7.5%
Republican — 2.5−5%
Republican — 0−2.5%
Democratic — 0−2.5%
Democratic — 2.5−5%
Democratic — 5−7.5%
Democratic — 7.5-10%
Democratic — 10−12.5%