Cohen manipulated polls and Giuliani walked back on 'no collusion'

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Watch Stephanie Ruhle and Ali Velshi dig into two bombshell reports on President Trump: That his former attorney Michael Cohen just admitted to manipulating polling data before the presidential election and that his current attorney, Rudy Giuliani, walked back on his claim that there was “no collusion.” Weighing in: NBC’s Ari Melber and Ken Dilanian.