Trump White House goes to war with California over voting maps

California – The Trump administration is stepping into California’s redistricting fight — a move that could reshape the political map ahead of the 2026 midterm elections and test the limits of state control over how congressional districts are drawn.

On Thursday, Justice Department lawyers told a federal court in Los Angeles that the administration would back a lawsuit filed by the California Republican Party and several conservative groups challenging the state’s newly approved redistricting measure. The intervention escalates a battle that could determine control of the House of Representatives next year.

At issue is Proposition 50, a ballot measure passed by California voters last week that gives state lawmakers the power to redraw congressional boundaries mid-decade — effectively overruling the state’s independent redistricting commission. Democrats, who hold large majorities in both chambers of the legislature, argue the measure is a legitimate response to what they call “nationwide manipulation” of voting maps by Republican-led states.

But the Trump administration’s lawyers see it differently.

In a filing with the U.S. District Court for the Central District of California, Justice Department attorneys argued that Proposition 50 “was sold to voters as a purely partisan correction, when in fact its focus was not partisanship, but race.” They called the new map a violation of the U.S. Constitution’s equal protection guarantees.

“Our Constitution does not tolerate this racial gerrymander,” the department’s brief read. “Because the Proposition 50 map does, the United States respectfully requests that this court enjoin defendants from using it in the 2026 election and future elections.”

The filing came just days after California Republicans and national conservative groups filed their own challenge, calling the measure a “naked power grab” designed to protect Democratic incumbents and solidify control of the state’s 52 congressional districts.

Democrats, meanwhile, have argued that California’s move is both legal and necessary. They point to aggressive mid-decade redistricting by GOP-controlled legislatures in states like Florida, Texas, and Georgia — efforts that have tilted multiple districts in Republicans’ favor and, in some cases, diluted the voting power of communities of color.

Governor Gavin Newsom’s office dismissed the Justice Department’s filing as political theater. “These losers lost at the ballot box and soon they will also lose in court,” said Brandon Richards, a spokesperson for the governor.

Behind the legal language lies a larger national fight. California’s five targeted congressional districts — stretching from Orange County to the Central Valley — are among the most competitive in the country. Each one could determine which party controls the House next year.

For Democrats, California’s map is a way to counterbalance what they view as years of Republican gerrymandering across the South and Midwest. For the Trump administration, it’s a chance to reassert federal authority — and to frame California’s actions as unconstitutional overreach.

The case now moves to U.S. District Judge Helen Walters, who will decide whether to grant the administration’s request for an injunction that would block the new map from taking effect.

A hearing is expected later this month, but the stakes are already clear. The fight over who draws the lines in California isn’t just about one state — it’s about which party gets to draw the map for the nation’s political future.