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.

President Donald Trump has deployed 4,000 National Guardsmen and 700 Marines to LA. But California Gov. Gavin Newsom and California Attorney General Rob Bonta are suing the Trump administration, saying they unlawfully "trampled over" California’s sovereignty when they federalized the California National Guard.

President Donald Trump has built his presidency around stretching the bounds of presidential authority, and his response to protests over an immigration crackdown in Los Angeles is no exception.

Tensions flared in Los Angeles late Monday. On Tuesday, teams worked to scrub away, cover up or fade out protesters' graffiti.

Protests in Los Angeles appeared to quiet overnight, but new ones are popping up in other cities. Trump has deployed more than 4,000 National Guard troops and 700 Marines to the protests.

By Brad Brooks, Jorge Garcia, Phil Stewart and Idrees Ali LOS ANGELES (Reuters) -Hundreds of U.S. Marines arrived in Los Angeles overnight and more were expected on Tuesday under orders from President Donald Trump,

Authorities swept in with flash-bangs and tear gas grenades to disperse hundreds of protesters in Los Angeles.

California Attorney General Rob Bonta said Monday that he’ll soon file a lawsuit against the Trump administration for federalizing National Guard troops this weekend.