. >> reporter: john hemmings was sally hemmings' brother. we don't know who the fingerprints in this brick belong to, but here it is under glass next to a handful of handmade nails, and a tribute to isaac granger, one of the men who made jefferson's nails. >> he's wearing his workman's apron and his shirt. he's showing you his hands which are signs of his creativity. >> reporter: love it or hate it, the exhibit is a profoundly different way to present jefferson. >> i could see people saying, this is an american hero, why are you trying to bring him down. i could see people saying, this is a slave holder. why are you still building him up. >> i've gotten a couple letters. how could you do this to thomas jefferson? why would you tarnish the image of this great man? i've had other people say, really, we want to give praise to this man who really had a concubine who had a slave mistress? >> reporter: the reason jefferson the architect will continue this spring at the university of virginia, a campus he designed, when uva dedicates this memorial

. >> john hemmings was sally hemmings brother.now who the fingerprint in this brick is but here it is under glass next to a handful of handmade nails and a tribute to isaac granger. >> his shirt, he's showing you his hands which are signs of his creativity. >> love it or hate it the exhibit is a profoundly different way to present jefferson. >> i could see people saying this is an american hero why are your trying to bring him down. i can see people saying this is a slave holder why are you building him up. >> i got a couple of letters how could you do this to thomas jefferson. i had other people say really we want to give praise to this man who really had a concubine, who had a slave mistress. >> the reassessment of jefferson the architect will continue at the university of virginia a campus he designed when uva dedicates this memorial to enslaved laborers. >> the slave worked below in kitchens poorly lit and poorly ventilated. >> mabel wilson worked on this. she studies race. jefferson's hallmarks is to hide places where slaves

john bolton testifying? >> always got along with hem. he didn't get along with some of our people but that is really up to the senate. >> will you stop it? >> i don't stop but i do have to, i would have to ask the lawyers because we do have to, to me, for the future, we have to protect presidential privilege. when we start allowing national security advisers to just go up and say whatever they want to say, we can't do that. so we have to protect presidential privilege. for me, but for future presidents, i would have no problem, other than we have protect, we have to be able to protect. people can't go up and say whatever my thoughts are, whatever your thoughts are, about us, countries, views, you don't want that to be out, we have to protect presidential privilege. >> you said yesterday you want nato to do more. can you be a little more -- >> yes -- >> have you gotten any indication from them. >> i spoke to them yesterday. i spoke to the secretary-jen yesterday and we had a great conversation. he was very, i think he was actually excited

john bolton. if these gop are ready to bring in witnesses, doesn't it make it harder to bring in witnesses that will acquit donald trump? >> they can hemd 67 for a conviction. >> and they're not getting that. i think the debate with them is with their constituents. i think nancy pelosi was never negotiating with mitch mcconnell. she was negotiating with people in maine, alaska, utah, who made it uncomfortable for those members to come back home. if those members want votes on witnesses, they can walk into mitch mcconnell's office today and say we need votes on those witnesses. they'll get it. i'm sure he'll find a way to talk to the white house and say we have to do this. he want to please donald trump but he wants to be even more. >> when you look at the republicans, they're split much more sort of down the middle, 39% in favor, 35% opposed. how do you read that? >> if i was a republican, i wouldn't want anybody involved in this testifying. mick mulvaney, the chief of staff, somebody who should be well skilled at this was a disaster at his last press conference. i wouldn't want him testifying. mike pompeo has given four or five differ