More than 2,100 anti-Trump demonstrations held across U.S. over weekend

MSNBC's Ari Melber hosts The Beat on Monday, June 16 and reports on more than five million attending anti-Trump demonstrations over the weekend, Democratic lawmaker Melissa Hortman and her husband killed in their home Saturday in an apparent act of political violence, and new fallout over Donald Trump's unprecedented move to deploy active duty troops in L.A. Rep. Kelly Morrison, Eugene Robinson, Paul Rieckhoff and Lena Waithe join.