1978Flipped from DemocraticFinal resultsIncumbent defeated
1978 election for California Senate District 10
California State Senate · California
Marz Garcia (R) won with 50.0% of the vote, defeating Arlen Gregorio (D) by 0.1 points, a seat Democrats won last time.
Marz GarciaRepublican · winner
50.0%88,248
Arlen GregorioDemocrat · incumbent
50.0%88,158
176,406 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 1978
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET