With many national political observers predicting Democrat Jon Ossoff will unseat GOP incumbent David Perdue in Georgia, attention is turning to what a Democratic-controlled U.S. Senate will look like during the first years of President-elect Joe Biden’s administration.

If Ossoff wins, Democrats and Republicans will have a 50-50 tie in the Senate, and Vice President-elect Kamala Harris will serve as the tiebreaker. What appears now to be a clean Georgia sweep will mean U.S. Sen. Chuck Schumer of New York will become Senate majority leader, replacing Kentucky Republican Mitch McConnell.

The Rev. Raphael Warnock has already been projected to defeat Georgia incumbent Kelly Loeffler, becoming the state’s first Black-elected senator.

That also means the Senate’s entire slate of GOP committee chairs will be swept aside in favor of Democrats, according to Delroy Murdock, a Fox News contributor and a contributing editor of National Review Online.

Murdock has compiled a list of which Democrats could be in line to chair some of the Senate’s most influential committees:

  • Appropriations — Patrick Leahy, Vermont
  • Armed Services — Jack Reed, Rhode Island
  • Banking — Sherrod Brown, Ohio
  • Budget — Bernie Sanders, Vermont
  • Finance — Ron Wyden, Oregon
  • Foreign Relations — Bob Menendez, New Jersey
  • Health & Education — Patty Murray, Washington
  • Homeland Security — Gary Peters, Massachusetts
  • Intelligence — Mark Warner, Virginia
  • Judiciary — Dick Durbin, Illinois

On Wednesday, Congress is expected to begin formally certifying Biden’s historic win over President Donald Trump in November’s election.

The typically routine proceeding Wednesday will be anything but, a political confrontation unseen since the aftermath of the Civil War as Trump mounts a last-ditch effort to stay in office. The president’s Republican allies in the House and Senate plan to object to the election results, heeding supporters’ plea to “fight for Trump” as he stages a rally outside the White House. It’s tearing the party apart.

The longshot effort is all but certain to fail, defeated by bipartisan majorities in Congress prepared to accept the results. Biden, who won the Electoral College 306-232, is set to be inaugurated Jan. 20.

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“The most important part is that, in the end, democracy will prevail here,” Democratic Sen. Amy Klobuchar of Minnesota, among those managing the proceedings, said in an interview.

The joint session of Congress, required by law, will convene at 1 p.m. ET under a watchful, restless nation — months after the Nov. 3 election, two weeks before the inauguration’s traditional peaceful transfer of power and against the backdrop of a surging COVID-19 pandemic.

McConnell, who warned his party off this challenge, is expected to deliver early remarks. House Speaker Nancy Pelosi, set to gavel proceedings on her side of the Capitol, called it a day of “enormous historic significance.” It is about “guaranteeing trust in our democratic system,” she said in a letter to colleagues.

But it is Vice President Mike Pence who will be closely watched as he presides over the session.

Despite Trump’s repeated unsubstantiated claims of voter fraud, election officials and his own former attorney general have said there were no problems on a scale that would change the outcome. All the states have certified their results as fair and accurate, by Republican and Democratic officials alike.

Pence has a largely ceremonial role, opening the sealed envelopes from the states after they are carried in mahogany boxes used for the occasion, and reading the results aloud. But he is under growing pressure from Trump to tip it to the president’s favor, despite having no power to affect the outcome.

While other vice presidents, including Al Gore and Richard Nixon, also presided over their own defeats, Pence supports those Republican lawmakers mounting challenges to the 2020 outcome.

“I hope that our great vice president comes through for us,” Trump said at a rally in Georgia this week. “He’s a great guy. Of course, if he doesn’t come through, I won’t like him quite as much.”

It’s not the first time lawmakers have challenged results. Democrats did in 2017 and 2005. But the intensity of Trump’s challenge is like nothing in modern times, and an outpouring of current and elected GOP officials warn the showdown is sowing distrust in government and eroding Americans’ faith in democracy.

“There is no constitutionally viable means for the Congress to overturn an election,” said Sen. Tim Scott, R-South Carolina, announcing his refusal to join the effort on the eve of the session.

GOP Senator Josh Hawley will object to Electoral College certification

Still, more than a dozen Republican senators led by Josh Hawley of Missouri and Ted Cruz of Texas, along with as many as 100 House Republicans, are pressing ahead to raise objections to the state results of Biden’s win.

Under the rules of the joint session, any objection to a state’s electoral tally needs to be submitted in writing by at least one member of the House and one of the Senate to be considered. Each objection will force two hours of deliberations in the House and Senate, ensuring a long day.

House Republican lawmakers are signing on to objections to the electoral votes in six states — Arizona, Georgia, Nevada, Michigan, Pennsylvania and Wisconsin.

Arizona will likely be the first to be disputed as the state tallies are announced in alphabetical order, and Cruz has said he will join House Republicans in objecting to that state.

Hawley has said he will object to the election results from Pennsylvania, almost ensuring a second two-hour debate despite resistance from the state’s Republican senator, Pat Toomey, who said the tally of Biden’s win is accurate.

Loeffler may challenge the results in Georgia. But it’s unclear if any of the other senators will object to any other state, as lawmakers were still devising a strategy.

Democrats have the majority in the House, and the Republican-led Senate is divided over the issue. Bipartisan majorities in both chambers are expected to soundly reject the objections.

The group led by Cruz is vowing to object unless Congress agreed to form a commission to investigate the election, but that seems unlikely.

Those with Cruz are Sens. Ron Johnson of Wisconsin, James Lankford of Oklahoma, Steve Daines of Montana, John Kennedy of Louisiana, Marsha Blackburn of Tennessee, Mike Braun of Indiana, Cynthia Lummis of Wyoming, Roger Marshall of Kansas, Bill Hagerty of Tennessee and Tommy Tuberville of Alabama.

Trump has vowed to “fight like hell” to stay in office. He said at a rally in Georgia the electors voting for Biden are “not gonna take this White House!”

Many of the Republicans challenging the results said they are trying to give voice to voters back home who don’t trust the outcome of the election and want to see the lawmakers fighting for Trump.

Hawley defended his role, saying his constituents have been “loud and clear” about their distrust of the election. “It is my responsibility as a senator to raise their concerns,” he wrote to colleagues.

As criticism mounted, Cruz insisted his aim was “not to set aside the election” but to investigate the claims of voting problems. He has produced no new evidence.

Hawley and Cruz are potential 2024 presidential contenders, vying for Trump’s base of supporters.

Lawmakers are being told by Capitol officials to arrive early, due to safety precautions with protesters in Washington. Visitors, who typically fill the galleries to watch landmark proceedings, will not be allowed under COVID-19 restrictions.