McConnell told Republican colleagues in a letter Wednesday he would block starting an impeachment trial before Joe Biden takes office Jan. 20 and control of the Senate shifts to Democrats
McConnell objected to a motion by Senate Minority Leader Chuck Schumer to approve by unanimous consent a stimulus-checks bill that passed the House on Monday
The Dow Jones Industrial Average fell 101.76 points, or 0.33%, to 30,302.21, the S&P 500 lost 9.84 points, or 0.26%, to 3,725.52 and the Nasdaq Composite dropped 57.54 points, or 0.45%, to 12,841.89
McConnell and Republican leaders in Congress have withheld any congratulations or acknowledgement of the results since Biden took on the mantle of president-elect on Saturday
McConnell said the two impeachment charges against Trump that he abused his power and obstructed Congress' ensuing investigation are constitutionally incoherent