What is Proposition 50?

Proposition 50, approved by 64.4% of California voters on November 4, 2025, temporarily adopts legislatively drawn congressional district maps for 2026-2030 elections, replacing the 2021 California Citizens Redistricting Commission maps, before reverting to the commission after the 2030 census.[1]

Why are California Republicans challenging Prop 50 at the Supreme Court?

Republicans argue the Prop 50 map is a racial and political gerrymander favoring Democrats by using race to advantage Latino voters, potentially flipping three Republican seats to safe Democratic and two others to lean Democratic.[story][2]

What was the recent federal court ruling on the Prop 50 map?

A three-judge federal panel ruled the map lawful last week, with District Judge Josephine Staton stating it was a political gerrymander designed to flip Republican seats.[story]

What is the timeline for the Supreme Court request and 2026 elections?

GOP seeks an injunction from Justice Elena Kagan by February 9 to reinstate the 2021 map; candidate filing starts February 9, primary June 2, general November 3.[story][1]

How does Prop 50 respond to actions in other states like Texas?

Prop 50 counters Republican-led mid-decade redistricting in Texas and other states, which favored GOP by gaining seats; California's map aims to offset this by flipping up to five Republican-held seats.[2]

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California GOP Asks Supreme Court to Block Prop 50 Congressional Map

California Republicans asked the U.S. Supreme Court to temporarily block a voter-approved congressional map they say racially and politically advantages Democrats ahead of 2026 elections.

Overview

A summary of the key points of this story verified across multiple sources.

California Republican Party filed an emergency application at the U.S. Supreme Court seeking to block Prop 50's congressional map from being used in the 2026 midterm elections.

A three-judge federal panel last week ruled the map lawful, with District Judge Josephine Staton saying Proposition 50 was a political gerrymander designed to flip Republican seats.

GOP attorneys argue the map used race to favor Latino voters and asked Justice Elena Kagan for an injunction by Feb. 9 to temporarily reinstate the 2021 commission map.

The redistricting could flip three Republican-held seats to safe Democratic status and make two others lean Democratic; candidate filing begins Feb. 9, primary June 2, general Nov. 3.

The dispute follows Texas's partisan redistricting and a Supreme Court decision allowing that map; attorneys from Dhillon Law Group represent Republicans, framing the case around constitutional race limits.

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: Proposition 50, approved by 64.4% of California voters on November 4, 2025, temporarily adopts legislatively drawn congressional district maps for 2026-2030 elections, replacing the 2021 California Citizens Redistricting Commission maps, before reverting to the commission after the 2030 census.[1]
Sources:
California Secretary of State
: Republicans argue the Prop 50 map is a racial and political gerrymander favoring Democrats by using race to advantage Latino voters, potentially flipping three Republican seats to safe Democratic and two others to lean Democratic.[story][2]
Sources:
Wikipedia
: A three-judge federal panel ruled the map lawful last week, with District Judge Josephine Staton stating it was a political gerrymander designed to flip Republican seats.[story]
Sources:
KQED
: GOP seeks an injunction from Justice Elena Kagan by February 9 to reinstate the 2021 map; candidate filing starts February 9, primary June 2, general November 3.[story][1]
Sources:
California Secretary of State
: Prop 50 counters Republican-led mid-decade redistricting in Texas and other states, which favored GOP by gaining seats; California's map aims to offset this by flipping up to five Republican-held seats.[2]
Sources:
California Democratic Party