Senate majority leader Mitch McConnell has already rejected Democrats' call to hear from several witnesses at Donald Trump's upcoming impeachment trial, but it may not matter if
Democrats can find enough
Republican votes to allow witness testimony.Even in the event that the
Senate decides to hear from the witnesses requested by Democrats - including
White House acting chief of staff Mick Mulvaney, office of management and budget official Michael Duffey, Mulvaney aide Robert Blair, and former national security advisor
John Bolton - the White House intends to continue blocking them from testifying.