The Last Word with Lawrence O'Donnell 09/11/17

Lawrence: Donald Trump still hasn't apologized to 9/11 families

Donald Trump participated in his first 9/11 memorial ceremony as president. Lawrence O'Donnell talks to Kurt Andersen about how Trump evoked the tragedy on the campaign trail, including his use of it "as a political sledgehammer in a Republican presidential debate." ... more Duration: {{video.duration.momentjs}}