"By calling forth troops...the President flouts the vision of our Founders," read an amicus brief filed by 21 states.

The ruling Thursday night came only hours after a federal judge’s order was to take effect at noon Friday. SAN FRANCISCO (AP) — The 9th U.S. Circuit Court of Appeals on Thursday temporarily blocked a federal judge’s order that directed President Donald Trump to return control of National Guard troops to California after he deployed them there following protests in Los Angeles over immigration raids.

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.

The public feud between California Governor Gavin Newsom and President Trump keeps intensifying, with name calling, insults, and accusations traded over television, and social media networks.

California Gov. Gavin Newsom has called President Donald Trump's military intervention in Los Angeles an assault on democracy.