you continued to tell had story in question the president's legitimacy in 2012, 13, fown 14, 15, as recently as january. >> yeah. >> the question is what changed your mind. >> nobody was pressing it, nobody was caring much about it. i figured you'd ask the question tonight of course, but nobody was caring much about it. i was the one that got him to produce the birth certificate >> he's going back to talking points again he's not answering the question. you combine that with the moment about donald trump's tax returns, why he's not releasing them. trump did throw a punch and land one on hillary clinton when she produces the deleted e-mails i'll produce my taxes and my attorneys have advised me not to. with that he was able to defend himself to a certain extent but hillary clinton was able to speculate in terms of why he wouldn't do that. rirn that one moment she said maybe rert because he d federal taxes. and then donald trump chimed in that makes me smart, affirming what hillary clinton just leveled at him. his attempt to defend himself at that point i think cost him and may have cost him d