Rep. Bill Pascrell, D-N.J., has called on House Speaker Nancy Pelosi to refuse to seat those Republicans who signed on to a brief supporting the Texas lawsuit seeking to throw out millions of votes when the next Congress is sworn in next year.

"Stated simply, men and women who would act to tear the United States government apart cannot serve as Members of the Congress," he said. "These lawsuits seeking to obliterate public confidence in our democratic system by invalidating the clear results of the 2020 presidential election undoubtedly attack the text and spirit of the Constitution, which each Members swears to defend."

“The House still retains the right to decide who is seated,” Pelosi said in 2018, amid concerns of fraud impacting the election in North Carolina's Ninth Congressional District. “Any member-elect can object to the seating or the swearing in of another member-elect, and we’ll see how that goes.”

-ABC News' Benjamin Siegel

Biden is introducing more nominees and picks for the incoming administration from Wilmington, Delaware, and while the resurgence of Obama-era officials has some Democrats worried the president-elect is relying so heavily on his longtime allies, Biden argued the choice behind each of his picks Friday.

"Vice President-Elect Harris and I knew we’d have our work cut out for us when we got elected, but we also knew we could build a team that would meet this unique and challenging moment in American history. Some are familiar faces. Some are new in their roles," Biden said. "Above all, they know how government should and can work for all Americans."

For secretary of agriculture, Biden’s nominating Tom Vilsack, who served in the same post throughout the Obama administration. Vilsack previously served two-terms as governor of Iowa.

For secretary of Housing and Urban Development, Biden chose Rep. Marcia Fudge, who has represented Ohio's 11th Congressional District for the last 12 years. If confirmed, she will be the first woman to lead the department in more than four decades.

For secretary of veterans affairs, Biden is nominating former President Barack Obama’s former chief of staff, Denis McDonough. McDonough also served as deputy national security adviser and chief of staff of the National Security Council during the Obama administration.

Biden picked Katherine Tai for U.S. trade representative. Tai currently serves as the chief lawyer on trade for the Ways and Means Committee in the House of Representatives and previously was chief counsel for China trade enforcement in the office of the U.S. trade representative.

For director of the White House Domestic Policy Council, Biden has appointed Susan Rice. Rice served as U.S. ambassador to the United Nations and later as national security adviser in the Obama administration.

Before introducing more Cabinet nominees and administration picks to the public on Friday, Biden opened with a statement on Pfizer and BioNTech’s coronavirus vaccine, which the Food and Drug Administration is expected to approve for emergency use at any time.

"I want to make it clear to the public: You should have confidence in this. There is no political influence,” Biden said.

Biden’s remarks come as sources familiar with the matter tell ABC News White House chief of staff Mark Meadows in a phone call on Friday suggested to FDA Commissioner Dr. Stephen Hahn that his job could be on the line if his agency doesn't authorize the emergency use for the vaccine by the end of the day.

-ABC News’ Katherine Faulders and John Santucci

The Senate has approved a one-week continuing resolution extension of government funding -- buying themselves seven days to come up with a grand deal on government funding and COVID-19 relief.

In a dramatic fashion, both Sens. Bernie Sanders, I-Vt., and Josh Hawley, R-Mo., indicated that next week, they must get a vote on their amendment to provide working class Americans with another round of $1,200 stimulus checks -- or they will block government funding, in effect, forcing a government shutdown.

-ABC News' Trish Turner and Allison Pecorin

With just hours to go until Tuesday's "safe harbor" federal law-mandated deadline for states to certify their election results and next Monday's Electoral College voting coming up, time is running out for Trump to find a way to overturn the results of the presidential election as he’s set out to do.

The president held a rally in Georgia -- his first since losing the election -- to campaign for the upcoming Senate runoffs there, races which will determine whether the GOP maintains control, but instead he spent most of his 101 minutes on stage pushing a whirlwind of unsubstantiated claims that the election was stolen.

Trump directly called on GOP Gov. Brian Kemp to "immediately ask for a special session of the legislature" -- which could theoretically set up the process of allowing lawmakers to appoint new electors who would support Trump over Biden despite Biden winning by nearly 12,000 votes in the state.

But Georgia officials have rejected Trump's call.

Kemp, joined by GOP Lt. Gov. Geoff Duncan, said in a statement late Sunday it would be unconstitutional for the legislature to "retroactively change" the process for choosing presidential electors, saying "doing this in order to select a separate slate of presidential electors is not an option that is allowed under state or federal law."

While Kemp and Duncan, along with GOP Secretary of State Brad Raffensperger and officials in his office, have said the only option in disputing the results is through the courts, pro-Trump efforts have ended in at least 38 defeats to date, with only a single court victory -- in a case in Pennsylvania that was ultimately not consequential.

It all comes as the president’s personal attorney tasked with leading his efforts to overturn the election in court, Rudy Giuliani, who has been traveling the country as part of the president's ongoing efforts to dispute election results, remains hospitalized with COVID-19 at MedStar Georgetown University Hospital in Washington since Sunday. The Arizona legislature has closed for the week "out of an abundance of caution" after Giuliani met with roughly a dozen GOP lawmakers.

As deadlines loom, Trump on Monday presents the presidential Medal of Freedom to wrestling legend Dan Gable at noon and meets with Vice President Mike Pence behind closed doors.

And while Trump administration officials vow that with vaccine on the horizon, life will soon return to normal, the Biden team is sounding alarms on its distribution, saying they still don’t have access to the plan to roll it out.

"We have yet to see any kind of detailed plan," Dr. Celine Gounder, an expert on Biden’s COVID-19 advisory board, told "CBS This Morning" Monday after Biden said the same last week.

Pressing forward with the transition despite Trump's roadblocks, Biden and Vice President-elect Harris will receive the President’s Daily Brief and meet with transition advisors on Monday ahead of personally debuting their new health picks, who will inherit leading the country through the ongoing coronavirus pandemic.