Two California Republican incumbents are on a collision course for November. Reps. Ken Calvert and Young Kim will face each other in the general election for the state's 40th Congressional District, according to Decision Desk HQ projections.
With ballots still being tallied, Calvert secured his spot in the runoff by taking 36.2 percent of the vote in Tuesday's primary. Kim followed with 21.7 percent, while the closest Democratic challenger, Esther Kim-Varet, trailed at 15.5 percent in the five-candidate field.
The intra-party matchup is a direct consequence of last year's Democratic-led redistricting, which reshaped California's congressional map. The new 40th District, which leans slightly Democratic, forced both sitting Republicans into the same turf. Kim currently represents the old 40th, while Calvert holds the neighboring 41st. The redrawn lines have upended several GOP-held seats across the state, as California's redistricting continues to reshape the 2026 House map, creating open seats and member-vs-member contests.
California's jungle primary system sends the top two vote-getters to the general election regardless of party, clearing the way for this all-Republican faceoff. Calvert, a veteran lawmaker first elected in 1992, celebrated his primary showing on social media, thanking supporters and volunteers. “We could not have done this without you. Tonight makes it clear that voters want an effective and consistent conservative who has been with President Trump from Day One,” he wrote on X.
The race is expected to be one of the most closely watched House contests in the country, with national implications for GOP control. Both candidates have strong ties to the party's base, but the district's new tilt toward Democrats could give an opening to the eventual Democratic nominee—if Kim-Varet or another candidate manages to force a runoff. However, with Calvert and Kim both advancing, the general election will be a battle between two sitting members, each with their own fundraising networks and established voter blocs.
Kim, a freshman who flipped a Democratic seat in 2020, has positioned herself as a pragmatic conservative focused on issues like small business and national security. Calvert, a veteran of multiple cycles, has emphasized his long record and early support for Trump. The contest will test whether voters prioritize seniority or fresh energy, and how the district's shifting demographics play out in a high-turnout presidential year.
As California primary results may stretch into next week as mail ballot counting lags, final tallies could shift slightly, but the top two are set. Both campaigns are already gearing up for a bitter and expensive fall campaign that will likely draw significant outside spending from national party committees and super PACs.
