New California Districts Propel Democrats’ House Majority Bid

June 1, 2026, 9:00 AM UTC

Democrats succeeded in one mid-decade redistricting push this cycle, and they are aiming to pick up as many as five seats in California with primary contests concluding Tuesday.

Democrats already control 43 of 52 districts in California, which has more House seats than any other state. An additional five seats would help flip control of the House in November.

“California is probably the biggest prize for the Democrats in terms of gerrymandering because of the gain of five seats, which you just can’t do in smaller states,” Christian Grose, a political scientist at the University of Southern California, said in an interview.

Republicans, at the urging of President Donald Trump, initiated the mid-decade redistricting frenzy in Texas. Democrats successfully beat back several other redraw attempts, but California is the only state where their party put new lines in place for 2026.

Virginia Democrats’ gerrymander was blocked by the state Supreme Court. A Utah judge adopted a remedial map favoring a one-seat Democratic gain. Some Democratic-controlled states that couldn’t or didn’t redraw lines in time for November are preparing to do so for the 2028 election.

“Without this redistricting, Democrats would’ve just lost so decisively in the mid-decade redistricting battle,” Eric Schickler, co-director of UC Berkeley’s Institute of Governmental Studies, said in an interview.

Republicans are clinging to a 218-212 House majority.

California “creating potentially four or five additional Democratic seats is crucial for Democrats if they’re going to take the House,” he added.

Jungle System

Under California’s “Top 2” primary, candidates of all partisan stripes run on a single ballot. The top two vote-getters qualify for the Nov. 3 general election, regardless of party. That means two Republicans or two Democrats could advance and lock out the other party.

The Democratic map’s targets include Rep. Kevin Kiley, who conferences with the GOP but is running for reelection as an independent in the Democratic-leaning 6th District in the Sacramento region. Five Democrats and one little-known Republican are also on the ballot.

Democrats are favored to flip the northern 1st District formerly held by Doug LaMalfa (R), who died in January. State Sen. Mike McGuire (D), educator Audrey Denney (D), and state Rep. James Gallagher (R) are the leading candidates in the primary and also in a concurrent special election to complete LaMalfa’s term under the GOP-leaning version of the 1st. If no candidate wins a majority, the top two finishers will compete in an Aug. 4 runoff.

Redistricting caused GOP Reps. Ken Calvert and Young Kim to seek the new 40th District, a Republican area in Riverside and Orange counties where they’re adopting more pro-Trump messaging than they did in competitive districts. Calvert leads the House Appropriations Defense Subcommittee. Democrat Esther Kim-Varet, an art dealer, probably is her party’s best bet to block a Calvert-Kim, Republican-only general election.

Rep. Ken Calvert (R-Calif.) is running a far more Trump-focused campaign in his newly redrawn district
Rep. Ken Calvert (R-Calif.) is running a far more Trump-focused campaign in his newly redrawn district
Ken Calvert Campaign via AdImpact

Merging the Calvert and Kim districts helped create an opening for Hilda Solis (D) to return to the House, where she served from 2001 to 2009 before becoming President Barack Obama’s first Labor secretary. Solis is the leading candidate in the new 38th District.

Two Republican districts will be tougher for Democrats to flip.

In the 22nd District, a Hispanic-majority agricultural hub in the Central Valley, Democrats are divided over who should advance to face Rep. David Valadao (R), a member of the Appropriations and Agriculture committees with crossover appeal.

The Democratic Congressional Campaign Committee is backing state Rep. Jasmeet Bains, a physician running as a center-left Democrat, over Randy Villegas, an educator whose supporters include the Congressional Progressive Caucus and Working Families Party.

Nine Democrats and two Republicans are on the ballot in the 48th District, which includes parts of Riverside and San Diego counties and added liberal Palm Springs in redistricting. Rep. Darrell Issa (R) isn’t seeking reelection in a district Trump lost by 3 points in 2024.

The National Republican Congressional Committee backed San Diego County Supervisor Jim Desmond. The leading Democrats probably are Ammar Campa-Najjar, a former Obama administration Labor Department official, and San Diego City Council member Marni von Wilpert.

Incumbent Protection

The map also shored up six Democrats who were elected or re-elected in 2024 by fewer than 5 points.

Reps. Josh Harder, George Whitesides, Dave Min, and Mike Levin are more politically secure than Reps. Adam Gray and Derek Tran, who could still face competitive races. Republican Kevin Lincoln, a former Stockton mayor who lost to Harder in 2024, is challenging Gray, a moderate Democrat.

Several older, long-serving Democrats face much younger rivals within their own party.

Rep. Doris Matsui, 81, has several challengers led by Sacramento Councilwoman Mai Vang, 41, whose supporters include the progressive Working Families Party and Justice Democrats.

Rep. Brad Sherman, 71, faces opponents including Jake Levine, 42, a former Biden White House aide. They’re seeking California’s 32nd District, which includes Los Angeles’ Pacific Palisades neighborhood devastated by January 2025 wildfires.

Rep. Mike Thompson, 75, a senior member of the tax-writing Ways and Means Committee, is sharing a ballot in the 4th District with eight candidates, including Democrat Eric Jones, 36, a venture capitalist who self-financed $5.2 million and raised $3 million more from donors through May 13.

Rep. Julia Brownley, 73, is retiring from the Democratic-leaning 26th District in most of Ventura County and part of Los Angeles County. Brownley endorsed state Rep. Jacqui Irwin (D).

Former Speaker Nancy Pelosi, 86, is retiring from the San Francisco-based 11th District and backing San Francisco Supervisor Connie Chan as her successor over other Democrats, including state Sen. Scott Wiener and Saikat Chakrabarti, a former tech engineer who was chief of staff to Rep. Alexandria Ocasio-Cortez (D-N.Y.).

California’s other open district is the dark-blue 14th District in Alameda County, where Eric Swalwell (D) resigned after ending his campaign for governor amid scandal. State Sen. Aisha Wahab (D) is the leading candidate.

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