Context: The demonstrations again have pitted Trump against Governor Gavin Newsom (D), one of the president's top foes who has called the deployment of troops in the LA area "unlawful" and "a serious breach of state sovereignty."

Trump’s federalization of the National Guard may still face court challenges, legal experts say, but his Saturday night order is rare.

Guard members arrived to specifically to protect federal buildings, including the downtown detention center where protesters concentrated.