California’s 40th – Republicans Young Kim and Ken Calvert are squaring off in CA’s 40th district as Democrats and an independent seek inroads.
A bitter intraparty fight between two Republican members of Congress is unfolding in California’s 40th District. a contest that is likely to leave GOP voters anything but celebratory. regardless of how the June 2 primary turns out.. The district covers inland parts of Orange County and portions of San Bernardino and Riverside counties. and it remains one of Southern California’s last strongly Republican seats.
What makes the race stand out. experts say. is that the showdown is being driven by redistricting that followed Proposition 50—an election-driven change that gave Democrats in Sacramento authority to redraw California’s congressional districts with Democratic candidates in mind.. As a result. two current GOP incumbents. Young Kim of Anaheim Hills and Ken Calvert of Corona. find themselves running against one another while trying to protect their seats.
The political whiplash extends beyond one campaign.. A conservative strategist described the outcome of the redistricting effort in sweeping terms. saying it both reduced the number of seats Republicans could win and forced incumbents into the same districts—setting up high-stakes contests rather than straightforward re-elections.. Even if a Republican ultimately holds the seat. the strategist argued. California’s broader Republican congressional position is still expected to be weaker.
Kim and Calvert, both Republican incumbents, have already turned the heat up.. Kim launched a $3.7-million advertising push last month. spotlighting her support for President Trump and positioning herself as a “trusted Trump conservative.” Calvert’s campaign responded with an attack ad that labels Kim a RINO. a pejorative term used within the GOP for Republicans in name but seen as insufficiently loyal—language that also echoes how Trump and other party figures describe perceived disloyalty inside their ranks.
The ad conflict draws on an issue that has become a flashpoint in the broader party fight.. Calvert’s television ad pointed to Kim co-sponsoring legislation in 2022 alongside other Republicans to censure Trump following the Jan.. 6, 2021, attack on the U.S.. Capitol.. Democrats widely criticized that censure effort as a muted response. and the episode is now being used as evidence in the GOP primary war over how firmly to align with Trump’s agenda.
Kim defended the censure in her earlier remarks. saying she believed the move could help hold the president accountable and potentially build bipartisan support—an argument rooted in the idea that the House could remain unified during national turbulence.. The contrast between that framing and the current campaign rhetoric underscores the tension between different styles of conservatism within the party.
Under the old district map. the 40th District had been competitive; under the new lines. it is now considered “solidly Republican” by a nonpartisan electoral handicapper.. The district stretches from Villa Park south to Mission Viejo in Orange County. then reaches into Corona. Murrieta. and Menifee in California’s Inland Empire.. The same assessment notes that in 2024. Trump would have won the district by 12 points. illustrating how quickly the ground shifted from vulnerability to relative safety.
Meanwhile, the general election field is taking shape for voters who may be looking beyond the two incumbents.. Democrats Esther Kim Varet. an art gallery owner; Lisa Ramirez. an immigration attorney; Joe Kerr. a retired fire captain; and Claude Keissieh. an electrical engineer. are all aiming to secure enough support among progressives in the district to advance in November.. Nina Linh. who began the race as a Democrat before identifying as an independent. is also seeking an opening with voters who feel worn down by party conflict.
Linh characterized the political moment as unusually polarized, saying she has never experienced anything like it in her adult life.. She described the electorate as exhausted by a long-running cycle of partisan rhetoric that she argues has fostered hyper-divisiveness—diverting attention from the everyday concerns that people prioritize.
The race has also drawn attention for what it represents about the GOP’s internal division.. A political communications professor described the 40th District as a “classic matchup” between two competing strands inside the Republican Party: the pro-Trump wing and the faction he associated with the period before Trump’s dominance.. In his view. Kim’s voting record aligns with advancing Trump policies. yet her personal political biography fits more closely with an earlier era of conservative politics.
Calvert, the longest-serving Republican in California’s congressional delegation, has positioned himself more directly with Trump, the professor said.. That distinction matters in a district where both types of Republicans—MAGA supporters and traditional Republicans who either accept Trump or quietly resent him—continue to make up much of the base.. With Republicans fighting over who best embodies that base. the primary becomes an early test of how the party’s competing identities will be managed.
Even if the district remains Republican, the stakes reach beyond June and beyond this particular seat.. The professor suggested the contest could serve as an early sign of what Republicans might face in the 2028 presidential primary. pointing to how the fight over loyalty. ideology. and party identity plays out when incumbents from the same party are forced into head-to-head competition.
For Democrats and independents, the primary fight could also create openings.. When GOP voters are split over whether alignment with Trump is the measure of conservatism. candidates outside the two-incumbent equation may try to present themselves as an alternative to the kind of partisan friction now dominating the campaign narrative.
For voters across the district. the coming weeks will reveal whether the new political reality created by redistricting changes only the map—or whether it changes how voters define representation in a party that is still arguing internally over its future direction.. In California’s 40th District. the dispute between two Republicans is already shaping the choices on the ballot for everyone else. setting the tone for a campaign that may be harder to contain than either party expects.
California 40th District Young Kim Ken Calvert Proposition 50 redistricting Trump conservative MAGA Republicans