Lexi Reese, a wealthy businesswoman with the potential for a strong campaign, has entered the race for the California U.S. Senate race. She is the fourth Democrat so far in the race. See this story. Thanks to Political Wire for the link.
Given California’s top-two system, if there are two Republicans eventually in the race, each of whom has a strong campaign, there is a possibility that the two Republicans might place first and second in the primary. Filing is in late November 2023. The primary is March 5, 2024. The strongest Republican who has already expressed an interest in the race so far is Steve Garvey, a former professional baseball player.