Some powerful voices in the Democratic Party are calling on Trump's cabinet and his vice president to remove him from office.
It came after Donald Trump urged his supporters to go to the U.S. Capitol yesterday, where they held a riot and invaded the building.
House Speaker Nancy Pelosi and Senate Minority Leader Chuck Schumer both said that Mike Pence should take action under the 25th amendment of the U.S. constitution.
It allows Pence to become acting president if he has the support of half of the cabinet due to the inability of the sitting president to continue in office.
"Yesterday, the president of the United States incited an armed insurrection against America," Pelosi said.
Pelosi added that if Pence and the cabinet do not take action, the House of Representatives will launch a second impeachment hearing against Trump.
Should the House approve articles of impeachment against Trump, the Senate would hold a trial on the charges, presided over by Chief Justice John Roberts.
Trump narrowly avoided being convicted last year after all but one of the Republican senators refused to find him guilty.
In the meantime, several left-wing Democrats in Congress have written to Senate and Congressional leaders urging them to reconvene Congress to start the process of removing Trump from office.
Pelosi also revealed today that the House sergeant at arms, Paul Irving, has given notice that he plans to resign.
The sergeant at arms is the top law-enforcement official at the U.S. Capitol responsible for the security of the premises.