Here’s how all 58 California counties voted on Prop 50, with around 75% of the vote in: Alameda - Yes, 79.9%. No, 20.1%. Alpine - Yes, 64.6%. No, 35.4%. Amador - Yes, 34.8%. No, 65.2% .

California passed Proposition 50, dramatically reshaping congressional districts in the battle for House control. Democrats gained an edge against Trump's redistricting push.

The California Republican Party, Assemblyman David Tangipa and 18 California voters filed a federal lawsuit early Wednesday to challenge Prop 50, alleging it unconstitutionally gerrymanders districts in violation of the 14th and 15th Amendments.

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.

Proposition 50, a ballot measure about redrawing the state’s congressional districts, was crafted by Democrats in response to Trump urging Texas and other GOP-majority states to modify their congressional maps to favor Republicans, a move that was designed to maintain Republican control of the U.S. House of Representatives.

Proposition 50, backed by Gov. Gavin Newsom and the state’s Democratic Legislature, asked voters to replace the state’s independently drawn congressional districts with new maps

Republican Rep. Ken Calvert said he will run for a newly drawn Southern California district, setting up a possible clash with GOP Rep. Young Oak Kim.

The California Republican Party said Wednesday it will sue to challenge the new congressional map approved by voters under Proposition 50​.