The lawsuit will seek to set aside the president’s order calling up troops in response to protests that spread over the weekend.

Attorney General Rob Bonta announced the legal action at a press conference, and called the president's move to federalize the National Guard an "infringement" on state sovereignty

California officials on Monday said they would file a federal lawsuit over the mobilization of the state's National Guard during the weekend's immigration protests in Los Angeles, accusing President Trump of overstepping his federal authority and violating the U.