California Gov. Gavin Newsom speaks at a "Yes On Prop 50" volunteer event at the LA Convention Center in Los Angeles on November 1, 2025. Jill Connelly/Getty Images

California voters will approve  Gov. Gavin Newsom’s push to redraw the state’s congressional maps, CNN’s Decision Desk projects, boosting the national Democratic Party’s efforts to win control of the US House next year.

The measure will allow Democrats to replace congressional lines drawn by the state’s independent commission with new ones that make five US House seats more favorable for the governor’s party.

President Donald Trump launched a national redistricting battle ahead of next year’s midterms, seeking to prevent Democrats from winning control of the House for the last two years of his administration.

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