Thousands of troops and hundreds of US Marines have been deployed to the city by US President Donald Trump to quell the demonstrations. Nearly 400 people have so far been arrested, including 330 undocumented migrants and 157 people arrested for assault and obstruction, including one for the attempted murder of a police officer.

The Trump administration has deployed the California National Guard in response to protests in Los Angeles that began Friday evening over immigration enforcement operations, which resulted in some clashes between demonstrators and authorities,

The Late Show host Stephen Colbert speculated the reason Trump deployed the National Guard is revenge for never winning an Emmy.

Monday's protests were largely calmer than Sunday's clashes. California officials insist that the 4,000 National Guards troops and 700 active duty Marines en route to L.A. are an unnecessary abuse of power by Trump.

The demonstrations featured more violence and arrests, with some protesters throwing objects at law enforcement, and authorities responding with less-lethal munitions.

4:47 p.m. EDT The Trump administration asked the judge to reject Newsom’s request and allow it to respond by Wednesday, calling Newsom’s attempt to block the deployment of federal troops “legally meritless” and saying it would jeopardize the safety of Homeland Security personnel and interfere with the government’s ability to carry out operations.

Hundreds of U.S. Marines arrived in Los Angeles overnight and more were expected on Tuesday under orders from President Donald Trump, who has also activated 4,000 National Guard troops to quell protests despite objections from California Governor Gavin Newsom and other local leaders.

Law enforcement has been pushing back Los Angeles protestors with 'less lethal' weapons. Now the National Guard is deployed and Marines are activated.