Oliver Larkin's campaign for Congress received a boost Friday as the Democratic challenger announced endorsements from State Rep. Angie Nixon and progressive activist Phillip Agnew, a former senior adviser to Bernie Sanders' presidential campaign.The endorsements strengthen Larkin's standing among progressive voters as he mounts a primary challenge against U.S. Rep. Jared Moskowitz in Florida's 25th Congressional District."Oliver isn't running to manage the status quo. He's running to challenge it," Nixon said in a statement released by the campaign. "Working people need leaders willing to fight for affordable healthcare, good-paying...