US House Speaker Nancy Pelosi has shared with lawmakers plans to remove President Donald Trump from office before starting an impeachment process.
The House of Representatives would vote on a resolution calling on Vice-President Mike Pence to remove Mr Trump’s presidential powers.
House Democrats would then introduce a charge of “incitement of insurrection” against Mr Trump over his role in the violent storming of the Capitol.
The first vote could happen on Monday.
On Sunday, Ms Pelosi wrote to lawmakers outlining plans for a resolution to formally request that Vice-President Pence invoke the 25th Amendment.
The move would allow Mr Pence to become acting president and remove Mr Trump from the White House.
Her letter said that this would be the first step, and that House Democrats would then “proceed with bringing impeachment legislation to the floor”.
“In protecting our constitution and our democracy, we will act with urgency, because this president represents an imminent threat to both,” Ms Pelosi said.