The hearing, set before U.S. District Judge Charles Breyer in San Francisco, will set off a rare test over the legality of a military deployment on American soil.

Donald Trump's move to send National Guard troops and Marines to Los Angeles amid unrest over his immigration policies has given new weight to a lingering question: How far can a president go in using the military to quell domestic disturbances?

Tensions between the Trump administration and California intensified this weekend as President Donald Trump decided to deploy 2,000 National Guard members to the Los Angeles area, a move the state’s Democratic leaders cast as an unnecessary escalation amid protests over the administration’s immigration policies.

White House press secretary Karoline Leavitt calls out riots in Los Angeles and explains why President Donald Trump deployed the National Guard.

White House Press Secretary Karoline Leavitt got into a heated back and forth with reporters on Wednesday as she held her first briefing since President Donald Trump’ federalized the National Guard in California and sent active-duty Marines to join them in cracking down on protests and unrest over immigration roundups in Los Angeles.

White House Press Secretary Karoline Leavitt touts the Trump administration’s successful response to anti-ICE riots across the United States.