The trial will determine whether the Trump administration violated a 19th-century law by sending the National Guard to LA.

Gov. Gavin Newsom alleges the Trump administration broke a 19th Century law called the Posse Comitatus Act when it deployed military units to Los Angeles in June.

US president Donald Trump said on Monday he was putting Washington’s police department under federal control and ordering the National Guard to deploy to the nation’s capital to combat what he said ...