Democrats in the House of Representatives delivered an article of impeachment against Donald Trump to the Senate on Monday night, formally triggering the first-ever impeachment trial of a former president.
The article accuses Mr Trump of “incitement of insurrection” over the deadly Capitol riots on January 6.
Shortly before the breach of the Capitol, Mr Trump told thousands of his supporters at a rally near the White House to “fight like hell” against the election results that Congress was certifying.
A mob marched down to the Capitol and rushed in, interrupting the count. Five people died in the unrest, including four of Mr Trump’s supporters and a Capitol Police officer.
The impeachment article was delivered in person by nine House impeachment managers to the Senate in a formal ceremony shortly after 7 pm (midnight GMT).
The move by Nancy Pelosi, the Democratic House Speaker, sets on course the second Senate trial for Mr Trump, the only US president to be impeached twice, and the first to face trial after leaving office.
Democratic congressman Jamie Raskin, one of the authors of the impeachment article, read the charges on the Senate floor.