U.S. House passes Trump impeachment, trial uncertainty remains

U.S. House Speaker Nancy Pelosi (C) speaks during a press conference after the House voted to impeach President Donald Trump in Washington D.C. Dec. 18, 2019. The Democrat-led U.S. House of Representatives voted on Wednesday to impeach President Donald Trump for abuse of power and obstruction of Congress. (Photo by Ting Shen/Xinhua)