California's 6th Congressional District held its June 2 top-two primary in a newly redrawn Sacramento-area seat after redistricting and an incumbent switch. Independent Kevin Kiley, the former Republican representative who changed districts and party affiliation, led early returns, while Democrat Richard Pan and Republican Michael Stansfield competed closely for the second spot amid a crowded field that included several other Democrats. Thousands of ballots, many from Democratic-leaning voters, remained uncounted days later, leaving the final two general election candidates uncertain. The outcome hinges on how late-counted votes shift the narrow margins among the leaders.