California's June 2 top-two primary for governor features a fragmented field of Democratic candidates including Xavier Becerra, Tom Steyer, Katie Porter, and Matt Mahan, alongside Republican frontrunners Chad Bianco and Steve Hilton. Recent Emerson College polling shows Becerra holding a narrow lead at 19 percent, followed closely by Hilton and Steyer, with the rest of the vote scattered among lower-polling contenders. This split has kept both Republicans competitive in surveys, prompting discussions of a possible all-Republican runoff. Donald Trump's endorsement of Hilton in March has consolidated some Republican support, while a series of candidate debates in April and May has highlighted differences on housing costs, taxes, and public safety. With mail ballots already distributed and the primary only weeks away, turnout patterns and late shifts among undecided voters could determine which two candidates advance to November.