"I don't know if it happened or didn't happen", he said.
Trump officials had initially described the project as the province of Cohen and simply in the discussion phase.
An investigation into Russia's interference in the 2016 election and possible collusion between Moscow and Mr Trump's campaign has loomed large over his presidency, amid media reports of his team's connections with Russian Federation.
Yes, Jeff. That's exactly it.
All of this raises serious questions about the BuzzFeed report that, while it is now being treated with high levels of skepticism due to the special counsel's statement, is still being defended by the news organization.
"Anthony [Cormier] and I have a story coming stating that Michael Cohen was directed by President Trump himself to lie to Congress about his negotiations related to the Trump Moscow project", the email read.
The panel also reacted strongly to Giuliani's comment to NBC's Meet The Press host Chuck Todd that the Trump Tower project had "petered out quite a bit" and was abandoned because Trump had to focus on running for president, adding "that is about as much as he can remember of it".
So, what Giuliani made a decision to do on Monday in an interview with the New York Daily News was walk that back. Cohen testified before the committee in 2017 and is expected to appear on February 8 NZT.
"The President never spoke with Cohen about the congressional testimony", Giuliani told the New York Daily News.
'According to the answer that he gave, it would have covered all the way up to - covered up to November, 2016. It is also not known when BuzzFeed believes Cohen told the special counsel about Trump's instructions to lie.
Giuliani reiterated his previous arguments that Trump was truthful in his repeated insistence that he wasn't doing business in Russian Federation, saying the President was only minimally involved and the involvement only went as far as submitting a nonbinding letter of intent - which he argues isn't the same as doing business.
He has said he lied to comport with Trump's own public comments to voters, but more recently has said he recalls the Moscow discussions extending to June 2016, a shorter time frame than Giuliani acknowledged Sunday.
"Imagine if a conservative outlet did this and ran with a story this flimsy and the Special Counsel's Office came out and said 'Actually this is not accurate.' Would they be allowed to go on CNN and be asked 'How does it make you feel?' They wouldn't; they would be condemned and they would be done", she said.
Journalist Carl Bernstein, a CNN political analyst, told Stelter on Sunday that he thought it was "going to take time before we fully understand what the exact truth is here".