https://www.mercurynews.com/2023/01/10/rep-katie-porter-launches-a-us-senate-bid/

Rep. Katie Porter is running for U.S. Senate in 2024.

The Orange County Democrat announced her campaign on Tuesday, Jan. 10. Sen. Dianne Feinstein, 89, has not yet said what her plans are for 2024, although there is widespread speculation that she may retire.