The Last Word with Lawrence O'Donnell 03/21/16

Donald Trump questions US–NATO alliance

Donald Trump laid out his foreign policy views and his views on Israel in a speech at AIPAC. Fmr. Senator and Special Envoy George Mitchell joins Lawrence to help fact-check Trump and weigh in on which parts of Trump’s policy are possible and which are pandering. ... more Duration: {{video.duration.momentjs}}