Notes of Rudolph Giuliani's interviews with two former Ukrainian prosecutors include one's allegation that then-Ukrainian President Petro Poroshenko warned him against investigating energy firm Burisma Holdings “as it was not in the interest of Joe and/or Hunter Biden.”
The notes were published by a Ukrainian news site, and their authenticity was confirmed by Giuliani, President Trump's personal lawyer, and by a second source who has seen the originals and who declined to be identified. But RealClearInvestigations could not confirm the prosecutors' assertions as presented in the notes.
The documents are embedded in the Google-translated article linked to here and can be viewed by scrolling down the page.
Contacted by text message, Giuliani told RCI that the notes were “prepared by George Boyle, retired NYPD detective,” but he declined to say anything further about them. Boyle is listed as director of investigations at Giuliani’s security firm.
https://www.realclearinvestigations.com/articles/2019/10/08/the_giuliani-ukraine_files_120711.html
MOAR at link.