About 50 U.S. Marines squared off against hundreds of protesters in front of a federal building in downtown Los Angeles on Saturday, with the crowd yelling in unison for them to go home. The Marines had been sent to the city by U.S. President Donald Trump along with federalized members of the California National Guard earlier this week over the objections of the state governor and the city's mayor, as anger over immigration raids drew thousands of demonstrators into the streets. Jesus Arias, a Los Angeles-based attorney, was at the front of the crowd with a bullhorn, working to convince...