russian investigation. and that's what comey was really looking at, whether the campaign of donald trump was colluding with the russians -- the democratic national committee's internet operation. and why the campaign -- why the campaign could have been involved or what donald trump's role in that was, that's still a product -- that's still under investigation now. >> okay, let's look at then versus now. how much do you think presidential tweets, which you do not have to deal with with regard to president nixon and watergate, how much do they compare to tapes that were made by president nixon? >> well, kind of the same thing. president nixon ultimately was brought down 100% by the fact he had a tape recording system in the white house and said he didn't know anything about the break-in and cover-up. and the tapes out of his own mouth show he was orchestrating