Impeachment article has 200 cosponsors: US rep.

Facebook has taken the unprecedented step of indefinitely blocking Trump's account after removing a video and temporarily suspending his account amid eruptions of violence at the Capitol on Wednesday.

"We believe the risks of allowing the President to continue to use our service during this period are simply too great," Facebook CEO Mark Zuckerberg said in a post. "Therefore, we are extending the block we have placed on his Facebook and Instagram accounts indefinitely and for at least the next two weeks until the peaceful transition of power is complete."

As the world watched a pro-Trump mob storm the Capitol Wednesday, Trump shared a video on his social media accounts telling the group "we love you" and "you’re very special" while he told them to go home. The video was soon removed by Facebook, Twitter and YouTube, and as pressure mounted, Facebook and Twitter temporarily suspended Trump's accounts.

-ABC News' Catherine Thorebecke

Another prominent former Republican leader has broken his silence on Trump and the Republican Party Thursday, with former House Speaker John Boehner calling for the GOP to "awaken" following Wednesday's "invasion" of the U.S. Capitol.

"I once said the party of Lincoln and Reagan is off taking a nap. The nap has become a nightmare for our nation. The GOP must awaken. The invasion of our Capitol by a mob, incited by lies from some entrusted with power, is a disgrace to all who sacrificed to build our Republic," Boehner said in a tweet.

Rep. Adam Kinzinger, R-Ill., now one of Trump's fiercest critics on Capitol Hill, is the first Republican to publicly call for the invocation of the 25th Amendment to remove him from office. 

"Sadly, yesterday it became clear that the president not only abdicated his duty to protect the American people and the people's house, he invoked and inflamed passions that gave fuel to the insurrection we saw here," Kinzinger said in a video posted to Twitter. "When pressed to move and denounce the violence he barely did so, while, of course, victimizing himself."

"All indications are that the president has become unmoored, not just from his duty, or even his health, but from reality itself. It is for this reason that I call for the vice president and members of the Cabinet to ensure that the next few weeks are safe for the American people, and that we have a sane captain of the ship," he added.

Kinzinger also spoke forcefully against the Electoral College challenge -- and his colleagues' support of it -- during the House debate Wednesday night over the ratification of Pennsylvania's vote.

-ABC News' Benjamin Siegel

White House Deputy National Security Adviser Matthew Pottinger resigned on Wednesday, according to a White House official and a person familiar with his resignation, joining a slate of White House staff to resign in the wake of Wednesday's rioting at the U.S. Capitol.

The White House’s National Security Council did not respond to questions about Pottinger, who was an assistant to the president.

-ABC News' Chief White House Correspondent Jonathan Karl and Ben Gittleson