U.S. Senate Majority Leader Mitch McConnell (C) heads to the Senate Chamber before the start of the Senate impeachment trial on Capitol Hill in Washington D.C., the United States, on Jan. 25, 2020. U.S. President Donald Trump's legal team started Saturday to make opening arguments in defense of the president in the ongoing impeachment trial in the Senate, after House managers, a group of seven House Democrats acting as prosecutors, argued for the president's conviction and removal from office over the last three days. (Xinhua/Liu Jie)