In the wake of an important Nevada union's decision not to endorse any candidate because of their concerns over the health care proposals across the board, a subset of Sanders voters reportedly took to social media to harass and harangue the union. On today's show: Jane McAlevey, labor and environmental organizer, post doctoral fellow in the Labor and Worklife Program at Harvard Law School and the author of A Collective Bargain: Unions, Organizing, and the Fight for Democracy, discusses how the candidates are courting organized labor, and how unions' political capital could play in the primary and general elections.