California Gov. Gavin Newsom questions Trump's mental and physical ability as their clash over immigration enforcement rages on.

San Francisco — A federal court hearing is scheduled for Thursday on whether the Trump administration can use the National Guard and Marines to assist with immigration raids in Los Angeles.

The California Governor has sued the U.S. President over the mobilization of the National Guard, calling it “an unmistakable step toward authoritarianism.”

Stephen Breyer's brother Charles Breyer will preside over the lawsuit Newsom brought against the Trump administration in California.

"This brazen abuse of power by a sitting president inflamed a combustible situation, putting our people, our officers and even our National Guard at risk. That's when the downward spiral began." Start the day smarter.

California Governor Gavin Newsom accused President Donald Trump of misusing his power by mobilizing troops in Los Angeles and warned other states to prepare for similar unrest, as protests over immigration raids stretched into a fifth night and led to a curfew in parts of the city’s downtown.

Trump deployed 4,000 National Guardsmen and 700 Marines to LA against the wishes of Newsom and Bass. Newsom sued the Trump administration, saying they unlawfully "trampled over" California’s sovereignty when they federalized the California National Guard.