Governor Gavin Newsom said the U.S. President “manufactured” the chaos in Los Angeles to distract from challenges and seize power.

The Insurrection Act is a federal law that allows the president to deploy the military and National Guard troops to suppress civil disorder, insurrection or rebellion. It was last used by President George H. W. Bush during the Los Angeles riots after the Rodney King verdict in April 1992.

Newsom said the lawsuit would challenge Trump’s federalizing of the California National Guard without the state's consent, a move with little precedent in U.S. history.