A brief but tense confrontation unfolded on the floor of the House of Representatives early Thursday morning, with some members appearing ready to come to blows while debating challenges put forth by Republican lawmakers seeking to reverse Biden's win.

Rep. Conor Lamb, D-Pa., used his five minutes to give an impassioned speech during the debate over the Electoral College votes from Pennsylvania.

"These objections don't deserve an ounce of respect. Not an ounce," Lamb said, aiming his comments towards the Republicans in the room. "A woman died out there tonight, and you're making these objections!"

"That attack today, it didn't materialize out of nowhere. It was inspired by lies," he continued. "The members who are repeating those lies should be ashamed of themselves. Their constituents should be ashamed of them."

Rep. Morgan Griffiths, R-Va., then jumped in, attempting to make a point of order and asking for some of Lamb's words to be stricken from the record.

"The gentleman said there were lies on this floor today, looking over this direction. I ask that those words be taken down," Griffiths said to House Speaker Nancy Pelosi regarding Lamb's speech.

Pelosi dismissed Griffiths because he spoke out of turn. Lamb then told Republicans: "The truth hurts."

As Pelosi banged her gavel, attempting to get the lower chamber in order, several members ran toward the back of the room. Sources, as well as reporters who were in the room, told ABC News that House Republicans and Democrats appeared to be confronting each other in the aisle, and a shouting match ensued about who should sit down.

Reps. Andy Harris, R-Md., and Colin Allred, D-Texas, appeared to be on the verge of a fist fight, sources told ABC News. There was shouting, but no punches were thrown.

The heated moment passed just as quickly as it began, and the debate resumed.

The House is expected to vote soon on the Republican objections to certify Pennsylvania's Electoral College ballots. Just hours earlier, the Senate voted 92-7 against the measure.

-ABC News' Mariam Khan

The Republican effort to overturn the will of Pennsylvania voters failed in the Senate early Thursday morning by a vote of 7-92.

The upper chamber had completely bypassed debate and went straight to a vote.

After the vote, Senate Majority Leader Mitch said he does not expect any additional challenges to the Electoral College results.

The Senate now stands ready to return to a joint session of Congress, as the Pennsylvania objection goes to the House of Representatives for a vote. Both chambers of Congress must vote in favor of the challenge for it to succeed.

-ABC News' Alllison Pecorin

As certification of the vote continues in Congress, an objection was made to electors from the state of Pennsylvania, which was supported by both a Republican representative and a senator, forcing a vote.

GOP Rep. Scott Perry of Pennsylvania objected to the state's electoral count, and said he was joined by 80 of his Republican colleagues.

GOP Sen. Josh Hawley objected for the Senate.

The Joint Session of Congress is now on hold, so that the respective chambers can split up for two hours of debate. In the Senate, they chose to skip debate and immediately moved to vote.

When both do vote, the objection is expected to fail, as the one over Arizona's electors did previously.

Earlier, GOP Rep. Mo Brooks of Alabama attempted to object to the electoral college votes from Nevada, but because no senators joined him, the objection was not sustained.

"Unfortunately, no United States senator has joined in this effort," Brooks said.

ABC News' Mariam Khan.

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

Rep. David Cicilline, D-R.I., said on Twitter that an article of impeachment has just passed 200 cosponsors.

House Democrats were circulating the draft, citing "incitement of insurrection" on Friday and said they could introduce it as early as Monday and hold a vote as early as the middle of the week.

On Saturday, House Speaker Nancy Pelosi, in a letter to Democrats, asked members to prepare to return to Washington this week -- another signal that the House could take up and pass the impeachment article to the Senate after it is formally introduced.

The article charges Trump with "willfully inciting violence against the government of the United States" with his comments at the rally outside the White House that it says "encouraged—and foreseeably resulted in—imminent lawless action at the Capitol."

-ABC News' Benjamin Siegel