The Last Word with Lawrence O'Donnell 12/30/15

Bill Cosby charged with sexual assault

The entertainer has been charged in Pennsylvania with aggravated indecent assault for an alleged 2004 incident. What do we know about the case? MSNBC's Lawrence O'Donnell speaks with NBC News legal analyst Karen Desoto and law professor Judith Ritter. ... more Duration: {{video.duration.momentjs}}