Timeline: The long road to Trump's impeachment and trial

U.S. President Donald Trump delivers his State of the Union address to a joint session of the U.S. Congress in the House Chamber of the U.S. Capitol in Washington, U.S., February 4, 2020. REUTERS/Joshua Roberts

WASHINGTON (Reuters) - The U.S. Senate was poised on Wednesday to acquit President Donald Trump on charges of abuse of power and obstruction of Congress.

Here is a look at the road to his impeachment and trial.