A protester in California appeared to snatch off a federal agent's mask during an altercation last week, according to new footage.

California and a coalition of 17 other states have backed a lawsuit calling for an end to unconstitutional immigration stops in Los Angeles.

U.S. Rep. Eric Swalwell, a California Democrat who sits on the Homeland Security Committee, joins “CUOMO” to discuss recent violence directed at U.S. Immigration and Customs Enforcement officers. He condemns the attacks but says opposition to ICE stems in part from the masks that officers wear: “If they are standing on lawfulness,