Peaceful demonstrations in downtown LA escalate to violent confrontation with police using tear gas as protesters throw objects, prompting warnings from LAPD and Homeland Security.

An LAPD officer went ballistic on an ABC News reporter covering protests in LA on Saturday — accusing him of making aggressive contact with an officer.

The organized opposition was timed for the day President Trump is hosting a rare U.S. military parade in Washington that's taking place on his 79th birthday.

GOP Rep. Darrell Issa is calling for Congress to investigate a DHS claim that LAPD officers took 2 hours to respond to Los Angeles rioters assaulting ICE agents.

A video clip of officers smashing the windscreen of a marked cruiser circulated amid anti-immigration enforcement protests in downtown Los Angeles.

McDonnell, who has been taking heat from some L.A. City Councilors, is being praised for his handling of holding the complex line between partnership with federal law enforcement without LAPD particip

Tensions rose downtown late Saturday afternoon as Los Angeles Police Department officers on horseback pushed back hundreds of protesters from the federal building, charged into the crowd on horseback,

An unlawful assembly was declared in downtown Los Angeles due to demonstrators throwing objects at officers, LAPD's Deputy Chief said.