News Dianne Feinstein, California’s longest serving senator, won’t seek reelection in 2024 February 14, 2023Ken Tran, USA TODAYComments Off on Dianne Feinstein, California’s longest serving senator, won’t seek reelection in 2024 Democratic Reps. Adam Schiff and Katie Porter are vying for the Senate seat. Feinstein she expects to endorse a successor within the next two months.