been discussed in the testimonies thus far. it sounds like there is more to this story yet to be revealed, no? >> well, yes, i think so. and john bolton, of all people in the white house, other than the president himself, probably knows more about this than anyone. and also he's remarks attributed to him by other witnesses had problems with this sort of second policy towards ukraine, you know, characterizing as a drug deal and rudy giuliani as a hand grenade and all that sort of thing. so if he does testify, i think it would be quite interesting and also quite damning. and of course this will be someone who got the direction directly from the president. >> bolton's attorney did not have to send that letter to congress. why do you think he did that, director?