[National Security Council Ukraine expert Lt. Col. Alexander Vindman and former White House Russia expert Fiona Hill] …told lawmakers the “blatant” push for politically motivated investigations from President Donald Trump left “no ambiguity” what the Ukrainians needed to do to secure a highly sought meeting.

… Gordon Sondland told Ukrainian officials in meetings on July 10 they would have to open an investigation to secure the White House meeting. Sondland told [Vindman and Hill] he was acting at the direction of Mulvaney.

…[Hill] was instructed by Bolton to take her concerns about the role Trump’s personal attorney Rudy Giuliani was playing in Ukraine to National Security Council attorneys. Bolton told her to make clear he was “not part of whatever drug deal Sondland and Mulvaney are cooking up on this.” 

…Vindman testified that the Ukrainians asked him in the spring “for advice on how to respond to Mr. Giuliani’s advances, meaning his call to undertake these — what would come across as partisan investigations.” Vindman said he recommended to Zelesnky not to get involved in US domestic politics.

…Vindman said he was first aware of the hold on Ukraine aid by July 3, and later learned that it came from Mulvaney’s office. 

……Vindman said that he had raised concerns about the July 25 call to NSC lawyers, and that the process that was used for placing the call transcript on a highly secure server was abnormal. 

Impeachment transcript: White House officials testify quid pro quo effort was coordinated with Mulvaney – CNNPolitics

hmmmmm