having conversations with him about it. >> throughout 2016 -- >> president also remembers -- yeah, probably up to, could be up to as far as october, november. until the election. so any time during that period, they could have talked about it. >> reporter: now, this is significant especially when we look at the timeline. it was in august 2016 that intelligence officials warned then-candidate donald trump about russian attempts to infiltrate his campaign, but if we are to believe rudy giuliani, that means that talks about a deal in moscow continued three months after trump received that warning from the intel community. then back in july 2016, trump denied having any business dealings whatsoever in russia. f if giuliani is correct, that means trump's denial came in the midst of the talks about the trump tower project. here's trump in 2016. >> i can tell you i think if i came up with that, they'd say,