An escalating clash pits a Republican president looking to fulfill his mass deportation goals against a Democratic governor with White House aspirations hoping to mobilize opposition.

A tense moment played out on CNN’s air Tuesday when a police officer trying to clear an area where demonstrators had been protesting immigration raids in Los Angeles confronted a reporter for the network seemingly caught in the chaos. As CNN’s Kyung Lah was reporting live from the demonstrations, the camera caught Los Angeles Police…

6:30 p.m.: More than 100 people gathered at the immigration services building and detention center in downtown Los Angeles to protest the raids. DHS officers fired pepper balls at the protesters before the Los Angeles Police Department dispersed the crowd.