LOS ANGELES —

The Justice Department on Thursday sued to block new congressional district boundaries approved by California voters last week, joining a court battle that could help determine which party wins control of the U.S. House in 2026.

Related video above: California GOP sues to block new California congressional map

The complaint filed in California federal court targets the new congressional map pushed by Democratic Gov. Gavin Newsom in response to a similar Republican-led effort in Texas backed by President Donald Trump. It sets the stage for a high-stakes legal and political fight between the Republican administration and the Democratic governor, who's seen as a likely 2028 presidential contender.

"California's redistricting scheme is a brazen power grab that tramples on civ

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