Verified source report
Incumbent county supervisor faces challenge from Coastside community activist
Longtime Menlo Park politician and incumbent Ray Mueller will face a Coastside challenger for the District 3 seat on the San Mateo County Board of Supervisors. Former Half Moon Bay Council member Joaquín Jimenez is running for the seat in hopes of better representing farmworkers.

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Longtime Menlo Park politician and incumbent Ray Mueller will face a Coastside challenger for the District 3 seat on the San Mateo County Board of Supervisors. Former Half Moon Bay Council member Joaquín Jimenez is running for the seat in hopes of better representing farmworkers.
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What happened
According to Redwood City Pulse’s source item, Incumbent county supervisor faces challenge from Coastside community activist, Longtime Menlo Park politician and incumbent Ray Mueller will face a Coastside challenger for the District 3 seat on the San Mateo County Board of Supervisors. Former Half Moon Bay Council member Joaquín Jimenez is running for the seat in hopes of better representing farmworkers.
Context
The development sits in VINI’s News file for readers following public-interest developments across VINI coverage areas. The original report is linked so readers can check the source account, follow later updates, and compare new coverage against the first published record. The source item is dated 2026-05-12T18:06:47+00:00.
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Primary source: Incumbent county supervisor faces challenge from Coastside community activist via Redwood City Pulse. VINI cites and links the source; it does not reproduce the publisher’s full article text without rights clearance.
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- Incumbent county supervisor faces challenge from Coastside community activistRedwood City Pulse - 2026-05-12T18:06:47+00:00
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