President Donald Trump has authorized more than 4,000 National Guard troops and 700 Marines to respond to protests in Los Angeles. Here's what it means.

National Guard members and Marines deployed to Los Angeles cannot perform law enforcement duties by law. That would change if Trump invokes the Insurrection Act.

During the volatile early days of the racial justice protests in 2020, city officials in Los Angeles at first resisted calling for National Guard assistance before deciding that troops were needed to control crowds.