U.S. Senate Majority Leader Mitch McConnell said on Friday the Senate should begin the impeachment trial of President Donald Trump even though it has not resolved a dispute over whether top White House aides will be called as witnesses. “We should address mid-trial questions such as witnesses after briefs, opening arguments, senator questions and other relevant motions,” McConnell said on the Senate floor as the chamber returned from a holiday break. The Senate is due to hold a trial to consider whether Trump should be removed from office, after the Democratic-controlled House of Representatives voted in December to impeach the president for pressuring Ukraine to investigate former Vice President Joe Biden, a potential rival in the 2020 presidential election.
