The Last Word with Lawrence O'Donnell 08/23/17

After 'unhinged' rally, worry about Trump having nuclear codes

Former Director of National Intelligence James Clapper says he's questioning Trump's fitness to lead after his Phoenix rally. Lawrence O'Donnell talks to fmr. Acting CIA Director John McLaughlin, who says Trump lacks the calm and control other presidents have had. ... more Duration: {{video.duration.momentjs}}