extraordinary turn-about for cohen, a member of trump's inner circle for more than a decade. his protector in business and politics. trump first denied knowing about payments cohen made to women to buy their silence during the campaign. >> did you know about the $130,000 payment to stormy daniels? >> no, no. >> why did michael cohen make that statement? >> well, you have to ask michael cohen. michael is my -- an attorney, and you'll have to ask michael cohen. >> reporter: he later acknowledged repaying cohen. but eight months ago, he erupted when authorities raided cohen's home and office. >> so i just heard that they broke into the office of one of my personal attorneys, good man. and it's a disgraceful situation. >> reporter: when cohen started cooperating with prosecutors, trump changed his tune and turned on him. >> he's a weak person. and not a very smart person. what he's trying to do is end -- and it's very simple.