The last time the National Guard was activated without a governor’s permission was in 1965, when President Lyndon B. Johnson sent troops to protect a civil rights march in Alabama.

President Trump issued a memo authorizing the National Guard to post up in Los Angeles, but California Gov. Gavin Newsom has called it "illegal."

President Trump's deployment of California National Guard soldiers in spite of Gov. Gavin Newsom's objections escalated tensions between the Republican administration and the Democratic state.

Active-duty Marines in California have been mobilized to support the National Guard and local law enforcement in Los Angeles, following days of protests lashing out at immigration enforcement actions by the Trump administration.