Was there anybody tied to the Trump administration who was NOT bribing Ukraine to investigate Hunter Biden?

Courtesy of NYT:

Not long before the Ukrainian president was inaugurated in May, an associate of Rudolph W. Giuliani’s journeyed to Kiev to deliver a warning to the country’s new leadership, a lawyer for the associate said.

The associate, Lev Parnas, told a representative of the incoming government that it had to announce an investigation into Mr. Trump’s political rival, Joseph R. Biden Jr., and his son, or else Vice President Mike Pence would not attend the swearing-in of the new president, and the United States would freeze aid, the lawyer said.

The claim by Mr. Parnas, who is preparing to share his account with impeachment investigators, challenges the narrative of events from Mr. Trump and Ukrainian officials that is at the core of the congressional inquiry. It also directly links Mr. Giuliani, the president’s personal lawyer, to threats of repercussions made to the Ukrainians, something he has strenuously denied.

But Mr. Parnas’s account, while potentially significant, is being contradicted on several fronts. None of the people involved dispute that the meeting occurred, but Mr. Parnas stands alone in saying the intention was to present an ultimatum to the Ukrainian leadership.

It should be noted that both Rudy Giuliani and Parnas’ old partner in crime Igor Fruman have denied that this warning took place. 

However the thing is that if Parnas is willing to say this under oath before the investigating House committees then it is going to hold a lot more weight than denials by renowned liar Rudy Giuliani and his indicted co-conspirator.  

I mean clearly the only way for them to argue against this account of events is if they are also willing to testify under oath. 

What do you say Rudy, want to set the record straight?