A rally will be held in Boston on Monday afternoon in response to federal immigration raids in Los Angeles and across the country. In a statement, the Massachusetts chapter of the national group 50501 “vigorously” condemned “the violent actions of ICE and the Trump administration against peaceful protesters in Los Angeles,” and said it is “mobilizing in solidarity with local union leaders in Massachusetts.” The 50501 group will lead the nonviolent “emergency rally” at Boston City Hall Plaza from 2 p.m. until 3 p.m. Participants will organize at 1:30 p.m. ... “This is an attack on American liberty,” said Mass...