The Ballot Brief
Orange County, California

California Senate District 34

CaliforniaOrange County › California Senate District 34

2 candidates are tracked for California Senate District 34 on the November 3, 2026 ballot: Avelino Valencia and Rhonda Shader. Candidate information follows official Orange County election filings; verify with the official election office linked below.

Avelino Valencia (Democratic) and Rhonda Shader (Republican) meet on the November 3 ballot. The seat is open: Sen. Thomas Umberg (Democratic), the sitting member per the Legislature's roster, is not on the November ballot. June 2 top-two primary result: Avelino Valencia (DEM) 65.2 percent and Rhonda Shader (REP) 34.8 percent advanced, per the Secretary of State's Statement of Vote. California's top-two primary decides who prints in November; the field is the Secretary of State's Certified List of Candidates for the General Election (August 27, 2026). This seat is elected by district; only the district covering your address appears on your ballot.

Avelino Valencia

Democratic

Avelino Valencia is the Democratic candidate for California Senate District 34 on the November 3, 2026 ballot, per the Secretary of State's Certified List of Candidates for the General Election.

2026 priorities (per the campaign site)

Source: candidate campaign site.

Campaign site →

Rhonda Shader

Republican

Rhonda Shader is a small business owner who has served on the Placentia City Council since 2016 and as Placentia Mayor for two terms, per her campaign site. She previously ran for this Senate seat in 2022.

2026 priorities (per the campaign site)

Source: candidate campaign site.

Campaign site →
Verify this race
Candidate roster from official Orange County Supervisor of Elections filings. Bios and priorities carry their attribution inline.
Cross-check with the official California election office, or see the full Orange County sample ballot and your exact ballot by address.