The Last Word with Lawrence O'Donnell 03/14/17

Donald Trump's 2005 tax return, why now?

Lawrence O'Donnell speaks with Rachel Maddow and David Cay Johnston on the two-page summary of Donald Trump's 2005 tax return, which were mailed to David Cay Johnston, and what that says about his tax status. ... more Duration: {{video.duration.momentjs}}