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

President Donald Trump said on Monday he would support the arrest of California's Gavin Newsom, in a dramatic escalation of a growing conflict with the Democratic governor over immigration protests that roiled Los Angeles over the weekend.

Governor Gavin Newsom of California announced that his state plans to file a lawsuit early Monday against Donald Trump for mobilizing the National Guard over the weekend to quell immigration-related protests in Los Angeles.