House Democrats on Wednesday released the transcript of Bill Taylor's closed-door testimony in the impeachment probe into .
Taylor, the top U.S. diplomat in Ukraine, was the first official to testify that a quid pro quo deal existed, with the Trump administration withholding Ukrainian military aid while requesting that Ukraine launch politically motivated investigations into interference in the 2016 election and former Vice President and his son Hunter.
"That was my clear understanding, security assistance money would not come until the President [Volodymyr Zelensky] committed to pursue the investigation," Taylor said in the testimony.
Taylor is also scheduled to testify publicly next week, as the impeachment probe enters its next phase. Democrats are releasing transcripts from the closed-door phase of their probe in batches this week.
Read Taylor's full testimony transcript below: