Momentum is building to remove President Trump from office following the violent attempted coup last Wednesday that saw an angry mob of Trump-backed insurrectionists storm the Capitol, resulting in five deaths. House Democrats are introducing a resolution formally calling on Vice President Mike Pence to invoke the 25th Amendment. House Speaker Nancy Pelosi says if Pence does not move to do so, the House will proceed with impeachment — for the second time in Trump’s single term. Pence has reportedly not ruled out using the 25th Amendment. California Congressmember Ted Lieu said an article of impeachment with at least 210 co-sponsors in the House will be introduced today. The draft resolution cites “incitement of insurrection.”

Meanwhile, two Republican senators have joined calls for Trump to resign: Alaska’s Lisa Murkowski and Pennsylvania’s Pat Toomey, who spoke on NBC’s “Meet the Press” Sunday.

Sen. Pat Toomey: “I think the best way for our country, Chuck, is for the president to resign and go away as soon as possible. … The president spiraled down into a kind of madness that was different.”

Republican Senators Ted Cruz and Josh Hawley are also facing increasing pressure to resign over their obstruction of the certification of electoral votes. Over 5,000 lawyers and law students have signed a petition urging their disbarment.

As fear grows of an increasingly unhinged Trump, House Speaker Nancy Pelosi told her caucus Friday she had spoken to General Mark Milley, chair of the Joint Chiefs of Staff, about safeguards that are in place should Trump seek to initiate a nuclear attack.