2000Final results
2000 election for California Senate District 1
California State Senate · California
Thomas Oller (R) won with 57.8% of the vote, defeating Thomas Romero (D) by 19.8 points.
Thomas OllerRepublican · winner
57.8%220,427
Thomas RomeroDemocrat
38.0%144,997
Jon PetersenLibertarian
4.2%16,075
381,499 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 2000
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET