California voters have approved Proposition 50, a ballot measure that will overhaul the state’s congressional map in a move expected to strengthen Democratic prospects in several key districts ahead of the 2026 midterm elections, CBS News projected Tuesday night.
The measure — strongly supported by Gov. Gavin Newsom and Democratic legislative leaders — will replace California’s existing congressional district maps, drawn by the state’s independent redistricting commission, with new maps crafted by the Legislature. The redrawn boundaries aim to make five Republican-held U.S. House seats more competitive for Democrats, a move that Newsom and his allies framed as a response to GOP-led redistricting efforts in states such as Texas.
“It was not just a victory tonight for the Democratic Party — it was a victory for democracy and for the people of this country,” Newsom said after the vote. “We’re proud that California continues to lead the nation in standing up for fairness and representation.”
Reaction across party lines
The passage of Proposition 50 immediately drew both celebration and condemnation.
Democratic billionaire Tom Steyer, a major backer of the initiative, hailed the result as “an enormous victory for our state, our country and our democracy.” Democratic National Committee Chair Ken Martin called it “a testament to the leadership of Governor Newsom and Democrats across California who refused to back down to President Trump and the Republican Party.”
Republicans, however, blasted the measure as partisan gerrymandering disguised as reform. GOP Rep. Kevin Kiley, whose 3rd District is among those affected, said the measure “burns everything down” by escalating the “redistricting arms race” between states.
Rep. Doug LaMalfa, another Republican whose district will be reshaped, vowed legal action. “Should these results stand, the imbalance between rural and urban voices in California will only worsen,” LaMalfa said. “We expect to file suit this week.”
Jessica Millan Patterson, chair of the “No on Prop 50” campaign, called the measure “a power grab by Sacramento elites” and said the campaign’s defeat was due to “tens of millions poured in to promote these gerrymandered maps.”
What Proposition 50 does
Proposition 50 overturns the state’s independent redistricting process, which voters created to ensure nonpartisan mapmaking after the 2020 Census. Under the new law, the Legislature will take over the process, giving Democrats — who already hold 43 of California’s 52 congressional seats — more influence in shaping the districts.
Democrats have said the change is necessary to counter Republican efforts in states like Texas, where recent redistricting has produced five new GOP-leaning congressional districts.
If Proposition 50 had failed, the state would have continued using the existing maps until after the 2030 Census. Instead, new district lines will now be drawn in time for the 2026 midterms.
The road ahead
Republican opponents, led by former Gov. Arnold Schwarzenegger and GOP donor Charles Munger Jr., are preparing court challenges. Munger, who spent more than $30 million opposing the measure, said he was “saddened by the passage of Proposition 50” but added that the campaign “educated Californians about the stakes.”
Newsom, meanwhile, urged other Democratic-led states to follow California’s lead. “We need our friends in New York, Illinois, Virginia and Colorado to meet this moment head-on,” he said.
While Proposition 50 gives Democrats a potential advantage in several House races, analysts caution that outcomes in 2026 will still depend on national trends and voter turnout.
