2022Final results
2022 election for California Senate District 34
California State Senate · California
Tom Umberg (D) won with 58.8% of the vote, defeating Rhonda Shader (R) by 17.5 points.
Tom UmbergDemocrat · winner · incumbent
58.8%96,419
Rhonda ShaderRepublican
41.2%67,633
164,052 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 2022
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET