Speaker, US House of Representatives, Nancy Pelosi has stepped up the pressure on Vice-President Mike Pence to act to remove President Donald Trump from office over his role in last week’s storming of Congress.
Lawmakers are expected to bring up a resolution asking Mr Pence to invoke the 25th Amendment to declare the president unfit for office.
According to BBC, Mr Pence is said to oppose the idea.
If he refuses, Democrats will vote to impeach Mr Trump who had urged supporters to march on the Capitol.
The Republican President has been accused by Democrats and an increasing number of Republicans over the riot, following a rally in which Mr Trump repeated unsubstantiated allegations of vote fraud.
Five people died in the attack, including a Capitol police officer.