The Last Word with Lawrence O'Donnell 05/15/17

White House defends Trump after leak bombshell

McMaster called it "false," but the Washington Post stands by its story Trump gave the Russians highly classified intel when they met last week in the Oval Office, which U.S. press was barred from covering. Evelyn Farkas, David Cohen & Eli Stokols join Ari Melber. ... more Duration: {{video.duration.momentjs}}