1980Final results
1980 election for California Senate District 9
California State Senate · California
Nicholas C. Petris (D) won with 64.9% of the vote, defeating Todd Roust (R) by 38.3 points.
Nicholas C. PetrisDemocrat · winner · incumbent
64.9%127,131
Todd RoustRepublican
26.5%51,990
Raymond T. DiamondLibertarian
5.1%9,978
Tom ConditPeace and Freedom
3.5%6,864
195,963 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 1980
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The candidates
Nicholas C. Petris (D)Todd Roust (R)Raymond T. Diamond (L)
Also on the ballot: Tom Condit (Peace and Freedom), 3.5%