Impeachment article has 200 cosponsors: US rep.

Sen. Joe Manchin, D-W.V., just told reporters on Capitol Hill that the Senate intends to finish certifying the election this evening. 

"We're going to finish tonight," Manchin said. "Everyone is committed to staying whatever it takes to get our job done." 

"These thugs are not running us off," he added.

Manchin told reporters he believes that they will be able to continue debate in the Capitol building. 

He said that being in the secure holding room with other Senators had a "way of bringing us together."

-ABC News' Trish Turner and Allie Pecorin

Sen. Jeff Merkley, D-Ore., tweeted a picture of what appears to be the mahogany boxes holding the Electoral College certificates that were the focus of the joint session -- forced to a halt when pro-Trump protesters stormed the building earlier just as debate on Arizona's vote count was underway.

The boxes are safe, per the senator, who added, "If our capable floor staff hadn’t grabbed them, they would have been burned by the mob."

After hours of chaos and as the Virginia State Police arrived at the U.S. Capitol Building, Trump called on his supporters to "go home" in a one-minute video message posted to Twitter.

Trump still didn't concede his loss to Biden and, without evidence, called the election "stolen" and fraudulent," but told the protesters to go home "in peace."

"I know you're hurt. We had an election that was stolen from us. It was a landslide election, and everyone knows it, especially the other side. But you have to go home now. We have to have peace. We have to have law and order we have to respect to our great people in law and order. We don't want anybody hurt."

"It's a very tough period of time. There's never been a time like this where such a thing happened where they could take it away from all of us from me from you from our country. This was a fraudulent election. But we can't play into the hands of these people. We have to have peace."

"So go home. We love you. You're very special. You've seen what happens. You see the way others are treated that are so bad and so evil. I know how you feel -- but go home and go home in peace," he said.

President-elect Joe Biden, who was scheduled to deliver afternoon remarks on the economy, addressed the unrest at the U.S. Capitol on Wednesday afternoon from Wilmington, Delaware, and called on Trump to "step up" and condemn the chaos being committed in his name.

"I call on President Trump to go on national television now, to fulfill his oath and defend the Constitution and demand an end to this siege," Biden said. "To storm the Capitol, to smash windows, to occupy offices, the floor of the United States Senate, rummaging through desks -- on the Capitol, on the House of Representatives -- threatening the safety of duly elected officials, it's not a protest. It's insurrection."

"The world is watching," he continued. "Think what our children watching television are thinking. Think what the rest of the world is looking at. For nearly two and a half centuries, we the people, in search of a more perfect union, have kept our eyes on that common good. America is so much better than what we’ve seen today."