Trump-Biden transition updates: Trump continues to tout he won election at Ga. rally

Biden is slated to receive his first President's Daily Brief Monday marking a milestone for the president-elect following a nearly three-week delay in the Trump administration recognizing him as the winner of the 2020 presidential election.

It comes after Biden, who has pressed forward with his transition despite Trump’s roadblocks, announced he’ll enter the White House with an all-female communications team and unveiled his economic team Monday morning, naming former Federal Reserve Chair Janet Yellen as his nominee for Treasury Secretary, the first woman to hold the top job if confirmed.

In another challenge to his transition, the president-elect fractured his right foot while playing with his dog, Major, over the weekend, and is expected to wear a walking boot for several weeks. 

Trump, meanwhile, isn’t acknowledging the loss even after appearing to come to terms with it on Thanksgiving and saying he would leave the White House if the Electoral College affirms Biden’s win. 

In a defiant interview with Fox Business Sunday, Trump fired off false claims to sow doubt in the electoral process and vowed to continue legal battles with his team on Monday targeting Arizona’s certification deadline. Trump’s personal attorney Rudy Giuliani and campaign adviser Jenna Ellis are expected to appear from D.C. at another non-official "hearing" of state GOP lawmakers at a Phoenix hotel Monday. 

The day also brings a certification deadline in Wisconsin, where a recount paid for by the Trump campaign wrapped over the weekend brought Biden 87 additional votes.

Biden has formally announced his economic team, including nominee Janet Yellen, who would be the first woman to lead the Treasury Department, and the first person to have served as Treasury Secretary, Chair of the Council of Economic Advisers and Chair of the Federal Reserve if confirmed.

Neera Tanden, nominated to to lead the Office of Management and Budget, would be the first woman of color in the role, if confirmed.

Here's a breakdown of the economic positions announced Monday: 

• Janet Yellen, Secretary of the Treasury
• Neera Tanden, Director of the Office of Management and Budget
• Wally Adeyemo, Deputy Secretary of the Treasury
• Cecilia Rouse, Chair of the Council of Economic Advisers
• Jared Bernstein, member of the Council of Economic Advisers
• Heather Boushey, member of the Council of Economic Advisers

-ABC News' Molly Nagle

The Biden transition is launching its Presidential Inaugural Committee, led by Tony Allen, president of Delaware State University, to organize activates around his swearing-in on Jan. 20. Several campaign officials including senior adviser Maju Varghese, national political director Eric Wilson and Nevada State Senator Yvanna Cancela, who also served as a senior adviser, will serve on the committee.

The team announced the following positions on Monday: 

• Tony Allen, Ph.D., chief executive officer
• Maju Varghese, executive director
• Erin Wilson, deputy executive director
• Yvanna Cancela, deputy executive director

“This year's inauguration will look different amid the pandemic, but we will honor the American inaugural traditions and engage Americans across the country while keeping everybody healthy and safe," Allen said in a statement.

The committee says it will work with the Joint Congressional Committee on Inaugural Ceremonies (JCCIC) to prioritize keeping people safe in the pandemic while engaging the public in the historic event.

-ABC News' Molly Nagle

Trump could not be more clear in what he's looking for -- what he now needs -- to hang on to power.

"It will take a brave judge or a brave legislature," the president said on Fox News Sunday morning.

What Trump is pleading for is as improbable as it is breathtaking. But there appears to be just enough political bravery of a different sort, coming from state and federal judges as well as state lawmakers, to put the presidency where the voters delivered it early in this long month.

The weekend brought an end to Wisconsin's partial recount -- as funded by the Trump campaign -- with Biden actually netting 87 additional votes, in results scheduled to be finalized Monday. The Trump campaign also lost yet another court challenge in Pennsylvania, this time with the state Supreme Court tossing out a challenge to absentee ballots.

Much attention has rightly focused on the unwillingness of Republican members of Congress to state what's obvious -- that Biden won and Trump lost.

But something profound has been happening at other levels of government. Lawmakers and judges from both political parties have rejected the president's increasingly outlandish claims that he should be awarded a second term.

Those claims have expanded even as Trump's losses pile up in courthouses and state houses. It has not been pretty, but the system continues to hold.

-ABC News’ Political Director Rick Klein