hillary clinton. how mr. stone could forget that is sort of beyond belief. but what mr. mueller is going to be looking at is his schedule, his e-mail communications, his texts, anything he said orally to both miss davis and andrew miller, because that's actually going to be a fairly easy perjury charge to prove if the investigative team can get any corroboration for the fact that he didn't forget about the meeting, he concealed it from the house intelligence committee. >> in my conversations in the past two hours about this -- about roger stone and the folks that are being interviewed, people keep bringing up don junior as well. not necessarily in direct relation to roger stone per se but as somebody who also could be very exposed in the mueller investigation. betsy, again, just remind our audience how don junior -- what don junior has at risk right now. >> one of the biggest challenges