"We don't want them here," Bass said on CNN's State of the Union. "They don't need to be here. Our local law enforcement have complete control of this situation."

To some Angelenos, the notion that their city was being invaded by Mexico might sound like a fantastical twist on the history of U.S.-Mexico military relations.

The military parade on Saturday evening, also Trump's birthday, was timed to celebrate the 250th anniversary of the US Army.