The Trump administration filed a lawsuit against California on Thursday over the state’s voter rolls.
The suit seeks to temporarily block California from counting mail ballots cast by voters the administration claims are likely noncitizens.
The filing opens a new front in the administration’s ongoing legal battles with state election officials.
California officials have not yet responded publicly to the complaint.
The case centers on how the state maintains and verifies its voter registration lists.
Mail ballots are a major part of California’s election system, with millions cast in recent cycles.
The lawsuit adds to a broader pattern of federal challenges to state voting procedures across the country.
