Updated Jan 14, 2021 Why Mitch McConnell Holds The Keys To Trump's Impeachment Fate The Senate trial will help write one of the final chapters of the majority leader's legacy. No one will shape the fate of Donald Trump in the coming days more than Senate Majority Leader Mitch McConnell (R-Ky.), who has left open the possibility of voting to convict the outgoing president over the deadly attack on the U.S. Capitol. As the House was voting Wednesday to impeach Trump for a second time, McConnell said in a note to his fellow GOP senators that he is undecided on whether to convict the president. He pledged in the letter to “listen to the legal arguments when they are presented to the Senate,” which is expected to begin immediately after Joe Biden is inaugurated on Jan. 20.