A federal appeals court on Tuesday spent more than an hour grappling with whether President Donald Trump unlawfully federalized thousands of members of California’s National Guard to beef up security in Los Angeles amid unrest over immigration enforcement there.

California Attorney General Rob Bonta acknowledged the appeals court may not be ‘the last stop’ in this fight with the Trump administration.

California Gov. Gavin Newsom and other Democrats have condemned the National Guard deployments, calling them illegal and unnecessary provocations.