US House Democrats introduced an impeachment resolution against President Donald Trump on Monday.
The Democrats criticized Trump for his role in the riot at the US Capitol last week.
The impeachment article says Trump incited violence against the government and that he will remain a threat to national security and democracy.
The resolution is expected to be approved in the Democrat-controlled House of Representatives.
It would make Trump the first-ever US president to be impeached twice. He was first impeached in December 2019 over allegations of applying improper pressure on Ukraine.
If approved, the process would then move to the Senate, which holds a trial.
A two-thirds vote of the Senate is required to convict and remove the president, so it appears unlikely that Trump will be removed from office.
It is extremely unusual that impeachment procedures against a president are initiated when his term expires in less than 10 days.
The Democrats were also seeking unanimous consent for a resolution that calls on Vice President Mike Pence to convene the Cabinet and invoke the 25th Amendment to remove Trump. Republicans oppose the move. A vote on it is planned for Tuesday.