Impeachment article has 200 cosponsors: US rep.

GOP Rep. Jody Hice of Georgia objected to the Georgia electoral votes but said he does not have a senator that will sign on because of the events of Wednesday.

Georgia Sen. Kelly Loeffler reversed course and said she would not object after the riot activity on the Hill. 

After Hice announced senators had withdrawn their objection, there were cheers from the Democratic side.

Additionally, Rep. Marjorie Taylor Greene and 70 Republicans are objecting to Michigan, but no senator signed on to support the objection.

-ABC News' Mariam Khan

The House has rejected the challenge to Arizona's electoral votes, 121-303, with most Republicans supporting the challenge.

There were 121 Republicans, 57% of the conference, who voted in favor of the objection, including GOP Leader Kevin McCarthy of California, and House Minority Whip Steve Scalise of Louisiana. 

On the other side, 220 Democrats voted against the objection, joined by 82 Republicans. Two Democrats and five Republicans did not vote.

Speaker Nancy Pelosi announced that the House will soon move back into joint session with the Senate, where the certification of the electoral votes will continue alphabetically by state. 

The next challenge expected is Georgia's votes, but it's unclear if House Republicans still have a senator to help them force debate and a vote. 

-ABC News' Ben Siegel

Hours after the Senate began debate counting the Electoral College votes, the full body voted 93-6 not to take up the objections to Arizona's Electoral College votes.

Senators Ted Cruz, Josh Hawley, Cindy Hyde-Smith, John Neely Kennedy, Roger Marshall and Tommy Tuberville all voted in favor.

Before the pro-Trump mob stormed the Capitol Wednesday, 13 Republican senators said they would object to the state over baseless claims of fraud. Seven changed their position after the violent siege ended and Congress returned to the Senate chamber.

Several senators will continue speaking on the floor while the House wraps up their debate on the objection to Arizona's electoral results, Senate Republican Leader Mitch McConnell said.

White House deputy press secretary Sarah Matthews has resigned in response to what happened at the Capitol Wednesday.

Matthews said in a statement she was "honored" to serve the administration and "proud" of the policies it enacted, but added "our nation needs a peaceful transition of power."

"As someone who worked in the halls of Congress I was deeply disturbed by what I saw today. I'll be stepping down from my role, effective immediately," she said in her statement.

-ABC News' Ben Gittleson