But by early August, the Ukrainians were struggling to get clear answers from their American contacts on the status of the assistance, according to American officials familiar with the Ukrainians' efforts.
In the days and weeks after top Ukrainian officials Gordon D. Sondland the United States Ambassador to the European Union, and Kurt D. Volker then the State Department's special envoy to Ukraine, were working with Mr Giuliani to make a statement on the case, Mr Perkins, Mr Sondland and the top Zelensky aide did not mention the hold up of the aid. It was only in September, after the Warsaw meeting, that Mr. Taylor wrote in a text message to Mr. Sondland, "I think it's crazy to withhold security assistance for a political campaign."
Through the summer, Mr. Zelensky had been noncommittal about the demands from Mr. Volker, Mr. Sondland and Mr. Giuliani for a public commitment to the investigations. On Sept. 5, Mr. Taylor tested, Mr. Zelensky met in Kiev with Senators Ron Johnson, Republican of Wisconsin, and Chris Murphy, Democrat of Connecticut.
Mr. Zelensky's first question, Mr. Taylor said, about the security aid. The senators responded, Mr. Taylor said that Mr. Zelensky "should not jeopardize bipartisan support by getting drawn into U.S." domestic politics. "
Mr. Mr. Sondland Mr. Zelensky, Mr. Zelensky, and Mr. CNG's interview with him.