The Last Word with Lawrence O'Donnell 08/17/15

Trump in 1999: GOP is ‘just too crazy’

The last time Donald Trump was on 'Meet the Press' he announced he was quitting the GOP. Plus, Trump says he won't 'rip up' the Iran nuclear deal. Lawrence O'Donnell talks with fmr. Rep. Tom Davis (R-VA), and reporters Zeke Miller, Anne Gearan, and Josh Barro. ... more Duration: {{video.duration.momentjs}}