One prominent GOP incumbent will lose their place in Congress.
In the long arc of American democratic self-correction, California's redrawn 40th Congressional District has produced an unusual consequence: two Republican incumbents, Ken Calvert and Young Kim, will face each other in November, ensuring that at least one veteran GOP voice will exit Congress regardless of the outcome. The collision is no accident — it is the deliberate result of a 2025 redistricting effort engineered by Democrats to reclaim competitive ground lost to Republican mapmaking elsewhere. What unfolds in November will test not only the loyalties of voters in a corridor stretching from Orange County to the Inland Empire, but also whether political architecture can reliably shape political outcomes.
- California's top-two primary system has created a rare and consequential collision: two sitting Republican congressmembers must now fight each other for a single seat, with no Democratic path to the general election.
- The newly drawn district — stretching from Villa Park and Mission Viejo through Corona and into Murrieta — was deliberately designed to destabilize Republican incumbents, and it is already delivering on that intent.
- For a full week after primary night, the second qualifying spot remained unresolved, with Young Kim holding narrowly until CBS News confirmed her advancement on June 9, adding suspense to an already charged race.
- Calvert, a 30-year congressional veteran who migrated from the 41st District after redistricting made it hostile terrain, now faces Kim — his former colleague and now rival — in a contest that will erase one of them from Congress entirely.
- Both candidates have staked their campaigns on Trump loyalty and border security, but their sparring over who is the more authentic supporter signals the race will be fought on identity and credibility as much as policy.
- The November result will serve as a referendum on California's redistricting gambit — revealing whether Democratic mapmakers successfully engineered a more competitive district or simply reshuffled the Republican deck.
Two Republican incumbents — Ken Calvert and Young Kim — will meet in November's general election for California's 40th Congressional District, a matchup made inevitable by the state's top-two primary system. The result guarantees that at least one prominent GOP representative will lose their congressional seat, no matter how the general election unfolds.
Calvert, who has served in Congress since 1992 and represented three different districts over his career, moved his campaign to the newly drawn 40th after redistricting rendered his previous district less hospitable to Republicans. Kim, one of the first Korean American women to serve in Congress, had represented the 40th since 2023 and faced seven challengers in her reelection bid — including Calvert himself. Her hold on second place remained uncertain for nearly a week before CBS News projected her advancement on June 9.
The district is itself a product of political engineering. California's 2025 redistricting effort, backed by Governor Newsom and legislative Democrats, redrew five districts to favor Democratic competitiveness — a direct response to Republican redistricting in Texas. The redrawn 40th winds from Orange County communities like Villa Park and Mission Viejo through the Inland Empire to Murrieta and Menifee, splitting the city of Corona in half.
Both Calvert and Kim have presented themselves as Trump allies and immigration hardliners, and both have pointed to their support for border wall funding as evidence of their conservative credentials. But the campaign trail has seen friction between them over who holds the more genuine allegiance to the former president.
No Democratic candidate advanced to the general election, leaving November's contest entirely within Republican hands. The outcome will determine not only which incumbent survives, but whether California's redistricting strategy succeeded in making the district meaningfully more competitive — or simply forced two Republicans to settle the question themselves.
Two Republican incumbents will face each other in November for California's 40th Congressional District seat, a matchup that guarantees at least one prominent GOP representative will lose their place in Congress. Ken Calvert and Young Kim both advanced from the primary election under California's top-two system, which sends the highest vote-getters regardless of party affiliation to the general election.
Calvert, who has served in Congress for more than three decades since his election in 1992, shifted his campaign to the newly drawn 40th District after redistricting made his current 41st District less favorable to Republicans. Kim, elected to the 40th in 2023 after two years representing the 39th District, faced seven challengers in her reelection bid, including her now-rival Calvert. The second spot remained uncertain for a week after the primary, but Kim held firm in second place until CBS News projected her advancement on June 9.
The district itself is a product of California's 2025 redistricting effort, approved by voters and backed by Governor Gavin Newsom and legislative Democrats. The redrawn 40th stretches from Orange County's easternmost communities—Villa Park, Mission Viejo—across the Inland Empire to Murrieta and Menifee, splitting Corona in half. The redistricting was designed to shift five districts toward Democratic advantage, a move intended to counter Republican redistricting efforts in Texas that created five GOP-leaning seats.
Calvert, a Corona native, has represented three different congressional districts over his career: the 42nd, 43rd, and 44th. Kim, from Anaheim Hills, is one of the first Korean American women to serve in Congress. Both have positioned themselves as Trump supporters and advocates for immigration reform, though they have sparred on the campaign trail over the depth and authenticity of their backing for the former president. Both have highlighted their support for Trump's border wall funding proposal, which allocated nearly $47 million.
The primary field included five Democratic candidates: Joseph Kerr, a retired firefighter who challenged Kim in 2024; Esther Kim Varet, an art gallery owner making her first political run; Lisa Ramirez, an immigration attorney; and Claude Keissieh, a U.S. Army veteran employed by Caltrans. Nina Linh, a nonprofit director, ran as a no-party-preference candidate. None advanced to the general election.
The November matchup will determine not only which Republican survives but also test voter preferences in a district that Democrats engineered to be more competitive. Calvert's three-decade tenure and deep roots in the area will face off against Kim's more recent arrival and her distinction as a trailblazing Korean American woman in the House. The outcome will reshape California's congressional delegation and signal whether the state's redistricting strategy achieved its intended effect.
Notable Quotes
Both candidates have positioned themselves as Trump supporters and advocates for immigration reform, though they have sparred over the authenticity of their backing for the former president.— Campaign positions
The Hearth Conversation Another angle on the story
Why did two Republicans end up running against each other in a district Democrats supposedly drew to favor themselves?
Because California's top-two primary system doesn't care about party. The two candidates with the most votes move forward, period. Democrats drew the district to be more competitive overall, but they couldn't control who would actually run or how voters would split their ballots in the primary.
So Calvert saw the redrawn map and decided to jump into Kim's district rather than stay in his own?
Exactly. His old 41st District became less favorable to Republicans after the redistricting. The 40th looked like a better bet, even though it meant challenging an incumbent from his own party who'd just been elected there.
That's a bold move. Did Kim see him coming?
She faced seven challengers total, so Calvert was one threat among many. But he's a 30-year veteran of Congress—that carries weight. Kim had to defend her seat while also proving she belonged in a newly drawn district.
What happens now that they're both in the general election?
They fight it out one-on-one. One of them will be out of Congress. The district leans slightly Democratic on paper, but both candidates are Republicans with strong Trump credentials, so it's really about which one can convince voters they're the better representative.
Does this redistricting actually work the way Democrats intended?
That's the question. They wanted to flip five districts blue. Instead, they got two Republicans battling for one seat. It might work out for Democrats in the end, but not in the way they drew it up.