What the judge rules, and the likely appeals that follow, may alter decades of understanding about the roles of governors and the White House in quelling domestic unrest.

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Though many of the demonstrations have been peaceful, clashes between law enforcement officers and demonstrators have led to hundreds of arrests in the Los Angeles area since Friday.

ToplinePresident Donald Trump took credit Thursday for calming protests in Los Angeles, alleging his deployment of federal troops there stopped demonstrations from growing, while California Gov. Gavin Newsom has said the military presence actually inflamed protests—as the two long-time political nemeses have contradicting narratives of their roles in managing the demonstrations.