Biden has arrived at The Queen Theater in Wilmington, Delaware, his de facto transition headquarters ahead of his inauguration in 44 days again without a medical accessory he's donned for the larger part of the last week.

Although Biden's doctor said last Sunday he would likely be wearing a walking boot for "several weeks" after he sustained hairline fractures in his right foot, Biden was not wearing the boot when he walked into the theater Monday afternoon. While attending a Saturday Mass in Wilmington, he was also spotted without what Biden has referred to as "the big boot."

Biden has said his foot feels “good” despite sustaining the fractures just over a week ago, and addressed the boot issue during an interview with CNN Thursday, noting that the larger cast is a little clumsy and while he wears it "most of the time," he’s been given a smaller option for going out in public.

Biden will receive the President’s Daily Brief and meet with transition advisers on Monday, according to his public schedule, and pre-tape transition production elements at The Queen, his team said.

It comes ahead of Biden introducing his top health care picks to the public on Tuesday including California Attorney General Xavier Berecca to lead the Health and Human Services Department and Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, as Biden's chief medical adviser to lead the country through the worsening COVID-19 pandemic.

-ABC News' Molly Nagle

Secretary of State Brad Raffensperger has recertified the results of the 2020 presidential election following a second audit that entailed counties counting by hand every one of the approximately 5 million ballots cast in the race.

The Trump campaign requested a recount after votes were first certified for Biden on Nov. 20, but the machine recount, as officials said to expect, reaffirmed that Biden won Georgia's 16 electoral votes -- the first Democratic presidential victory in the state since 1992.

In a press release announcing the recertification, Raffensperger also gave a statement about the dismissal of former Trump legal team lawyer Sidney Powell's "Kraken" lawsuit by a Georgia court earlier in the day.

“Today is an important day for election integrity in Georgia and across the country,” Raffensperger said. “The claims in the Kraken lawsuit prove to be as mythological as the creature for which they’re named. Georgians can now move forward knowing that their votes, and only their legal votes, were counted accurately, fairly, and reliably.”

-ABC News' Quinn Scanlan

A Trump campaign lawsuit was rejected by a Georgia state court Monday because the Trump legal team failed to pay the filing fee and neglected to fill out the proper forms. It's the latest in a string of blunders and gaffes that are adding self-inflicted delays to their time-sensitive legal challenges.

Trump filed the lawsuit in Georgia Friday afternoon officially contesting the results of the election and requesting a do-over -- another in a series of long-shot legal bids that have so far met with stiff resistance from the state's Republican election officials. Pro-Trump legal efforts across the country 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.

The latest rejection comes just after Georgia Secretary of State Brad Raffensperger said he would recertify the state’s election results, affirming Biden’s victory after a third count of presidential votes, sometime Monday.

-ABC News’ Matthew Mosk and Olivia Rubin

Up against Tuesday's "safe harbor" deadline, Georgia Secretary of State Brad Raffensperger said that he will recertify that Biden won Georgia's election sometime Monday following the state's third recount of the presidential vote there which has Biden ahead by nearly 12,000 votes.

"It's been a long 34 days since the election on Nov. 3. We have now counted legally cast ballots, three times, and the results remain unchanged," Raffensperger told reporters.

As he did in his WSJ op-ed this morning, the secretary equated how former gubernatorial candidate Stacey Abrams acted after her 2018 loss and Trump's behavior in 2020.

"Whether it's the president of the United States or a failed gubernatorial candidate ... disinformation regarding election administration should be condemned and rejected," he said. "All this talk of a stolen election, whether it's Stacey Abrams, or the president of the United States is hurting our state."

Raffensperger also said that "the focus on Nov. 3 is drawing energy away from" the state's goals of job growth, efficient COVID-19 vaccine distribution and "getting back to normal."

"I know there are people that are convinced the election was fraught with problems, but the evidence -- the actual evidence, the facts -- tell us a different story," he said.

Gabriel Sterling, the voting system implementation manager in Raffensperger's office, came to the podium afterward to fact check some of the misinformation that the president has helped spread. In one example, he directly called out the president's legal team for how they've tried to "mislead" people about a video from counting occurring in State Farm Arena in Fulton County that Trump played at his rally in Valdosta on Saturday night.

"What's really frustrating is the president's attorneys had this same videotape. They saw the exact same things the rest of us could see, and they chose to mislead state senators and the public about what was on that video," he said, debunking the notion that there were "magic ballots" that showed up in the state's largest county.

"They knew it was untrue and they continue to do things like this," Sterling said. "We continue to see people who are put in positions of responsibility, sending out this disinformation and undermining the electoral system," he added later.Minutes after Raffensperger told reporters he would receritfy the vote Monday, Trump continued his attacks on election officials in the state on Twitter, targeting GOP Gov. Brian Kemp for signature verification saying he'd have an "easy win" were it conducted -- but signature verification was already done twice for absentee ballots in the state, and the vote was recounted three times affirming Biden's win.

-ABC News' Quinn Scanlan

Trump and Biden hold dueling events on the pandemic response Tuesday with the president hosting a "vaccine summit" at the White House, just days before a Food and Drug Administration advisory committee holds a hearing on whether to authorize emergency use of a COVID-19 vaccine, while the president-elect is slated to formally roll out his health care picks who will take over handling the COVID-19 pandemic in 43 days.

At his event, Trump is slated to sign an executive order touting his mantra of "America First" that would prioritize Americans’ access to COVID-19 vaccines before the United States helps other countries. But the chief science adviser to "Operation Warp Speed," the U.S. government's initiative to expedite vaccine development which Trump is also expected to tout, said Tuesday morning he doesn't know about the vaccine-related executive order Trump is expected to sign.

"Frankly, I don't know and, frankly, I'm staying out of this. I can't comment," Dr. Moncef Slaoui told ABC News Chief Anchor George Stephanopoulos in an interview Tuesday on "Good Morning America,” when asked to explain the executive order.

The event comes as a senior administration official familiar with the matter confirmed reporting to ABC News that the Trump Administration passed when Pfizer offered in later summer to sell the U.S. more COVID-19 vaccine doses -- an approach which the White House has denied and Slaoui defended Tuesday. Representatives of Pfizer and Moderna -- the two drug companies seeking emergency-use authorization -- are not expected to attend the White House summit, nor is anyone from the Biden transition team.

Biden, meanwhile, is slated to introduce the health care team he will entrust with handling the pandemic California Attorney General Xavier Becerra as Health and Human Services secretary, the first Latino to hold the post if confirmed. Director of the National Institute of Allergy and Infectious Diseases Dr. Anthony Fauci, who is taking on the elevated role of chief medical adviser to Biden in the incoming administration, is expected to dial into Biden’s meeting, though not the one at the White House.

Biden and Vice President-elect Kamala Harris are also meeting Tuesday with several civil rights leaders including NAACP representatives to discuss policy issues around racial equity as well as diversity and representation on the incoming Cabinet. It comes after news leaked that Biden is expected to name retired four-star Army Gen. Lloyd Austin as his defense secretary, who would be the first African American in the post if confirmed, this week.

Tuesday is also the congressionally mandated "safe harbor" deadline -- the date, under federal law, by which the "final determination of any controversy or contest concerning the appointment" of electors "shall be conclusive” -- making it extremely difficult to dispute election results in the courts, where pro-Trump efforts have seen at least 39 defeats to date.