The five pages of typewritten, printed-out notes – not transcripts –together with the IG’s cover letter to lawmakers, were posted this week on a Ukrainian website, The Babel. They appear to memorialize two conversations: one on Jan. 23, when Giuliani spoke by phone with the former general prosecutor of Ukraine, Viktor Shokin; the other is from two days later, when Shokin’s successor, then-General Prosecutor Yuriy Lutsenko, met Giuliani in New York.

In addition to the fired Shokin’s claim that President Poroshenko warned him not to investigate Burisma because it was not in the Bidens’ interest, the notes say, the prosecutor also said he “was warned to stop” by the then-U.S. Ambassador to Ukraine, Geoffrey R. Pyatt.

The State Department declined to explain this assertion about Pyatt, who was ambassador to Ukraine from 2013 to 2016 and now is Ambassador to Greece. The Biden presidential campaign did not respond to a request for comment.

Recounting Shokin’s version of events, the notes say he “was called into Mr. Poroshenko’s office and told that the investigation into Burisma and the Managing Director where Hunter Biden is on the board, has caused Joe Biden to hold up one billion dollars in U.S. aid to Ukraine.” Poroshenko later told Shokin that “he had to be fired as the aid to the Ukraine was being withheld by Joe Biden,” the Giuliani interview notes say.