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

White House Press Secretary Karoline Leavitt said President Trump called in the National Guard with the expectation that it would "hopefully prevent and deter some of this violence.”

U.S. officials said about 1,000 National Guard members were in the city under federal orders by midday Monday.