the impeachment investigation after admitting to asking ukraine to help him dig up dirt on trump's political rivals. joining me now is john dean, michael isikoff. michael is the author of "russian roulette: the inside story of putin's war on america and the election of donald trump." max boot is here as well. max is the author of "the corrosion of conservatism: why i left the right". gentlemen, good to see all of you. thank you so much for joining us. john, i'm going to start with you. rudy giuliani has been subpoenaed by congress to produce documents. he says he's giving it appropriate consideration. do you think he's going to comply? how do you expect this to play out? >> i think he'll follow trump's wishes, and i think they probably like his telephone for openers, which he won't -- he'll probably not give that up, but he may give some of the text messages that he's been flashing around on television. and who know what's other documents he has. he seems to not be the kind of