1986Final results
1986 election for California Senate District 4
California State Senate · California
James W. Nielsen (R) won with 64.5% of the vote, defeating Franklin S. Cibula (D) by 28.9 points.
James W. NielsenRepublican · winner · incumbent
64.5%150,060
Franklin S. CibulaDemocrat
35.5%82,733
232,793 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1986
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET