A majority of voters in seven California counties won by President Trump in 2024 also supported Proposition 50 in a special election earlier this month, helping pass the redistricting measure championed by Gov. Gavin Newsom and legislative Democrats.

Data show that ballots cast to approve Prop. 50 — which passed with 64% of the vote — outnumbered "no" votes in Fresno, Imperial, Lake, Merced, Riverside, San Bernardino and San Joaquin counties, each of which was carried by Mr. Trump in the last presidential election. No California counties that voted for Kamala Harris in the 2024 presidential election voted no on Proposition 50, according to data from the California Secretary of State's Office (SOS) for both elections.

Prop. 50 temporarily redraws five of the state's Republican-held c

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