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This is the 1970 race. The latest: 2026 →

1970Final results

1970 election for California Senate District 12

California State Senate · California

Arlen Gregorio (D) won with 51.0% of the vote, defeating Carl A. Britichgi (R) by 4.2 points.

Arlen GregorioDemocrat · winner
51.0%98,964
Carl A. BritichgiRepublican
46.9%90,874
Robert W. BullockIndependent
2.1%4,086
193,924 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 1970

Races before and after

EvenD+22.21978D+1.91982D+12.01986D+18.21990R+2.11994R+9.11998

Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET

The candidates

Arlen Gregorio (D)Carl A. Britichgi (R)

Also on the ballot: Robert W. Bullock (Independent), 2.1%