you share a cooperating witness. >> meaning you think normally he would try to get something out of it before cooperating? >> yeah. you usually have a deal with the office with whom you're trying to cooperate. and usually you work all that out. there are multiple offices that have a basis for an investigation, in a organized crime office or corporate fraud or anything else, it gets worked out in advance o'everyone knows what the promises are, what they can expect, everyone knows what the prosecutor's going to argue for even if the prosecutor can't guarantee a leeb yent sentence because that's up to a judge. >> the fact cohen has had these interviews, does it make it any less likely or more likely that the president might sit down with mueller? it seems the more mueller knows the less it would be likely the president would sit down. >> we're talking about likelihood in the sort of 1% to 2% range. i think the likelihood of the president sitting down is fairly close to zero. i don't know that that particular factor would play in it at all. ? preet bharara, thank you. fascinating. >> thank you. other emerging details