The Last Word with Lawrence O'Donnell 01/10/18

Ex-Watergate prosecutor: Trump is 'going to have to testify'

While Trump walked backed his "100%" commitment to speak with Mueller, Jill Wine-Banks says the president has no choice. Following the tradition of Nixon, Ford, and Clinton, he'll be forced to comply. Ron Klain and Jennifer Rubin also join. ... more Duration: {{video.duration.momentjs}}