Impeachment witnesses testify Mick Mulvaney was involved in attempted Ukraine quid pro quo

Both impeachment witnesses who had their deposition transcripts released Friday mentioned Acting Chief of Staff Mick Mulvaney as being involved in coordinating an alleged quid pro quo with Ukraine.Lt. Col. Alexander Vindman, the top Ukraine expert on the National Security Council, in his testimony told Congress that at a meeting with Ukrainian officials, U.S. Ambassador to the European Union Gordon Sondland mentioned Ukraine conducting investigations President Trump wanted was "required in order