U.S. House Intelligence Committee Chairman Adam Schiff (Front) arrives at the Senate Chamber before the start of the Senate impeachment trial on Capitol Hill in Washington D.C., the United States, on Jan. 21, 2020. The impeachment trial against U.S. President Donald Trump kicked off Tuesday in the Senate as the chamber debated, and would later vote on, a resolution stipulating rules guiding the process. (Photo by Ting Shen/Xinhua)