this maximilian katzman, who is the kato kaelin of the trial so far, he says -- he says, well, that ishe only customer i've ever had who paid that way. who cares? this is not against the law. i don't know what manafort did. i think this whole thing -- i don't know, my antenna, my spidey senses are going up about this case. i don't know if it is rick gates, if they are afraid to bring him and as a prosecution witness, they seem to be hesitant about bringing gates in, which i find interesting. professor? >> whenever you have a witness who has admitted to lying, it is a very hard job to put them on the stand.d. the witness always says, i lied in the past, yes iknow that, but now i'm telling the truth.wy the lawyer for the defense says, you expected benefits from telling the truth. don't you expect to get a good deal? so it's very hard to get a successful conviction based on a flipped witness who might not only be singing, but composing. this judge is very sympathetic to that. he used that term. he said sometimes witnesses who are squeezed, not only think about compose, and make the case -