The Last Word with Lawrence O'Donnell 12/22/15

Trump defends vulgar comments against Clinton

Donald Trump is defending his offensive rhetoric against Hillary Clinton, claiming the vulgar term he used means 'badly beaten.' But experts - and candidates on both sides of the aisle - disagree. David Frum, David Corn, and Wendy Davis join MSNBC's Lawrence O'Donnell. ... more Duration: {{video.duration.momentjs}}