1988Flipped from RepublicanFinal resultsIncumbent defeated
1988 election for California Assembly District 20
California State Assembly · California
Ted Lempert (D) won with 51.9% of the vote, defeating William P. Duplissea (R) by 6.9 points, a seat Republicans won last time.
Ted LempertDemocrat · winner
51.9%72,485
William P. DuplisseaRepublican · incumbent
45.0%62,789
June R. GenisLibertarian
3.1%4,330
139,604 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 1988
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET