The race was quickly called in the measure's favor by election experts even as thousands of ballots remained to be counted across California.

California voters have passed Proposition 50, CBS News projects, approving a measure backed by Gov. Gavin Newsom and legislative Democrats that will redraw the state's congressional districts.

HEADED TO COURT: In the lawsuit California Republicans filed this morning to challenge the Prop 50 map, they claim the state’s move to redraw its congressional lines is unconstitutional and violates the 14th and 15th amendments for redistricting on the basis of race, Faith Wardwell reports.

Gov. Gavin Newsom wasted no time Thursday night using his landslide Proposition 50 win to assail President Donald Trump, describing the partisan redistricting measure as a rebuke to Trump’s efforts to undermine democracy.

Attorneys for the plaintiffs say there’s no proof that racially gerrymandered maps favoring Hispanics were necessary.

California Republicans filed a federal lawsuit to block Prop 50 maps, alleging racial bias and constitutional violations in redistricting.

A plan to redraw California’s congressional districts, known as Proposition 50, has passed in Tuesday’s election, in a blow to President Donald Trump.

California GOP Chair Corrin Rankin said she was "proud" the party signed onto the lawsuit, which asks the federal court to block the maps before they go into effect for the 2026 midterms. Bill Essayli, President Donald Trump's top legal prosecutor in California, oversees that court.