Supreme Court shuts down California GOP bid to block Newsom's new map

The decision comes after voters in California approved a ballot measure called Proposition 50, which allowed the state to enact a Democrat-friendly map in time for the midterms.

Gov. Gavin Newsom speaks at a "Yes On Prop 50" volunteer event in Los Angeles, California. (Getty Images)

California lawyers argued to the high court that those claims were insufficient to meet the high burden required to overturn the map. They also said no district actually gained Latino residents of voting age.

"None of the stray statements invoked by plaintiffs … reveals any race-based motive, let alone a racial motivation that predominates over all others," the California lawyers wrote.

Proposition 50, according to Newsom, was a way to fight what he called President Donald Trump's "power grab in Texas," which passed its own map intended to give Republicans five seats.

Texas Sen. Phil King displays a map during a hearing on Aug. 7, 2025, in Austin, Texas. (Brandon Bell/Getty Images)

The voting rights groups who challenged Texas and Republican Gov. Greg Abbott claimed that the map was an illegal racial gerrymander, but the high court said the groups could not offer an alternative map that served Texas’ political needs. In the 6-3 unsigned order, the justices also said the lower court should not have "interfered with an active primary campaign, causing much confusion and upsetting the delicate federal-state balance in elections." The three liberal justices dissented.

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The decision in Texas was issued on an emergency basis while the case proceeds, but the court schedule signals that the state's map will remain in place through at least the 2026 elections. 

Fox News Digital reached out to Republican Assemblyman David Tangipa, who led California's challenge, and the DOJ for comment.

Ashley Oliver is a reporter for Fox News Digital and FOX Business, covering the Justice Department and legal affairs. Email story tips to ashley.oliver@fox.com.

https://www.foxnews.com/politics/supreme-court-shuts-down-california-gop-bid-block-newsoms-new-map