The Last Word with Lawrence O'Donnell 01/05/17

What if Trump doesn't believe intel on Russia?

The C.I.A. Director will brief Trump Friday on evidence that the Russians interfered in the U.S. election. But will he believe it? And if not, how do congressional Republicans respond? Ari Melber discusses with Jason Kander and David Frum. ... more Duration: {{video.duration.momentjs}}