Rep. Darrell Issa, a California Republican, announced he will not seek reelection and has endorsed San Diego County Supervisor Jim Desmond to succeed him in Congress.

Issa represents California's 48th District, which was redrawn following the 2020 census. The redistricting process reshaped the district's boundaries under California's redistricting commission established by Proposition 11.

Desmond currently serves as a San Diego County Supervisor and would need to win both the Republican primary and general election to succeed Issa in the House of Representatives.

The timing of Issa's retirement announcement comes as congressional districts across California have been reconfigured based on new census data, potentially affecting the political composition of various seats.

Issa has served multiple terms in Congress representing different California districts over his career. His endorsement of Desmond provides early backing for a potential successor in what is expected to be a competitive race.