Nov 29, 2016: An aide to Ukrainian president Poroshenko provided FBI with incriminating tapes of Biden talking to Poroshenko.

Dec 19, 2016: Biden told Poroshenko that FBI rejected the info and won't talk to whistleblower again.

Could someone ask @PressSec how Biden knew that? https://t.co/Fei8n6RYY7

— Hans Mahncke (@HansMahncke) June 14, 2023