The 5-0 vote marks the first time the board has used its authority under Measure A, a 2025 charter amendment approved by 84% of voters in a special election in response to alleged misconduct by Corpus. The measure allows the board to remove an elected sheriff for cause with a supermajority vote through Dec. 31, 2028.

The San Mateo County Board of Supervisors voted Tuesday to remove Sheriff Christina Corpus from office, marking the first use of their newly granted authority under a voter-approved charter amendment.

Tuesday to proceed with forcing Sheriff Christina Corpus out of office, KTLA sister station KRON reports. The sheriff has publicly declared that she will not step down voluntarily due to public pressure and plans to appeal.