MSNBC’s Ari Melber hosts "The Beat" on Monday, June 17th, and reports on the upcoming Biden-Trump debate, accountability faced by Trump allies Bannon and Giuliani, the false MAGA rhetoric on violent crime in the U.S., and the a right-wing media company PragerU's partnerships made with six states. James Carville, Molly Jong-Fast, and Maya Wiley join.