Trump sends letter to Pelosi, slamming impeachment ahead of full House vote

The Capitol Hill is shrouded in fog in Washington D.C., the United States, on Dec. 17, 2019. U.S. President Donald Trump on Tuesday sent a six-page letter to House Speaker Nancy Pelosi, slamming the House Democrats impeachment effort as an "illegal, partisan attempted coup" and an "unprecedented and unconstitutional abuse of power." (Xinhua/Liu Jie)