As best I can tell, he seems to think he heard something not contained in the official transcript. I doubt that very much particularly in view of the fact that he was apparently advising Ukrainian officials on how to "deal with" Rudy Giuliani.
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He doesn't know about the law, that allows president to ask about corruption in Ukraine. Their NEW president just won, there, on his platform of removing corruption, and same with President TRUMP, so AFTER congratulating each other on their win, President asked THEIR president to look into some corruption. 1998 law put in by Clinton. Nothing was withheld with Ukraine.
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KYIV, Ukraine (AP) — Ukrainian President Volodymyr Zelenskiy says there was "no blackmail" in the phone call with U.S. President Donald Trump that helped spark an impeachment inquiry.
Responding Thursday to questions from The Associated Press, Zelenskiy said he only learned after their July 25 phone call that the U.S. had blocked hundreds of millions of dollars in military aid to Ukraine.
"We didn't speak about this" during the July call, Zelenskiy said, saying the military aid wasn't the "theme" of the conversation. He spoke Thursday during an unusual, all-day "media marathon" in a Kyiv food court amid growing questions about his actions as president.