Demi Lovato Urges Mike Pence to Invoke 25th Amendment: Donald Trump Is 'Unfit to Lead'

McCain, who is the daughter of late Arizona Republican Senator John McCain, commented: "Thank you for sharing Demi."

The 25th Amendment was discussed by leaders immediately after the insurrection, but it requires Pence and a majority of the Cabinet to declare the president unfit for office. If Trump were then to dispute the call, Congress would need to have a two-thirds majority vote to remove him.

Democrats have already drafted an article of impeachment that charges the president with "willfully inciting violence against the government of the United States" for the attack on the Capitol. The assault left five dead, one of whom was a Capitol police officer. If approved, the article would also seek to prevent Trump from running for president again, which he has previously told supporters he would do.

Prior to urging the vice president to remove Trump from office, Lovato shared her horror over the Jan. 6 attack, which took place as Congress gathered to count the Electoral College votes, the final step in announcing Joe Biden's victory. "My heart is broken," she tweeted that day. "“It makes me to sad to believe how naive I was to think this couldn’t possibly happen, and yet it did."

She added: "I'm angry, embarrassed and ashamed. I’m in the studio working on something special after today’s assault on democracy."