The Last Word with Lawrence O'Donnell 09/14/17

Trump fans lose it over Trump's wall, DACA comments

Donald Trump is facing attacks from some of his strongest supporters after reports he agreed to enshrine "DREAMer" protections into law. Tim O'Brien and David Frum join Lawrence O'Donnel to discuss Trump's backtracking on DACA and the wall. ... more Duration: {{video.duration.momentjs}}