Sidney Powell was at the White House again today for meetings. It was not immediately clear if she met with President Trump.

Sources told ABC News that the president had considered trying to appoint Powell, an election lawyer Trump had cut from his legal team, as a special counsel to look into the 2020 election -- even though the president cannot do so under the auspices of the Justice Department. Attorney General William Barr has already rejected the idea of appointing a special counsel to investigate the election.

-ABC News' John Santucci and Ben Gittleson.

President-elect Joe Biden received the first shot of a coronavirus vaccine during a televised event in Delaware on Monday.

Many have expressed hope that Biden receiving the jab on camera will help stoke public confidence in the vaccine, as well as ensure the continuity of government.

"I’m doing this to demonstrate that people should be prepared when it's available to take the vaccine, there’s nothing to worry about," Biden said.

His wife, Jill Biden, received her shot earlier in the day. The Bidens received the Pfizer-BioNTech vaccine, according to a statement from his office.

The president-elect also took time to thank health care workers and first responders, including the woman who administered the shot, saying, "We owe you big, we really do."

Finally, Biden encouraged people to still wear masks, socially distance, and avoid travel during the holidays.

Vice President-elect Harris stopped in Columbus, Georgia, on Monday to campaign on behalf of Senate Democratic candidates. She told reporters that she will be heading right back to Washington, D.C., afterwards to vote on the COVID-19 relief bill.

Harris said that she was in the Georgia to support Raphael Warnock and Jon Ossoff, "and to remind Georgians that their voice is strong and matters in this election."

"And so, I want to remind everyone to vote and vote early," she said, noting that the runoffs will determine "the future of Georgia and, certainly, our country."

Finally, the vice president-elect said they were closely monitoring the situation with the new strain of COVID-19 in the U.K., and they will "make a decision as appropriate" regarding banning travel.

-ABC News’ Beatrice Peterson

Attorney General William Barr told reporters Monday that he sees no reason to appoint special counsels to investigate Hunter Biden and baseless claims of widespread election fraud. President Donald Trump has privately discussed naming lawyer Sydney Powell, earlier fired from his legal team, as a special counsel.

"I think to the extent that there's an investigation I think that it's being handled responsibly and professionally currently within the department and to this point I have not seen a reason to appoint a special counsel and I have no plan to do so before I leave," Barr said at a news conference at the Justice Department.

Without presenting any evidence, however, Barr also said that he’s sure there was election fraud in the election, and that the country is too tolerant of it, but not enough to change the election results, saying "we had looked at suggestions or allegations of systemic or broad based fraud that would affect the outcome of the election and I already spoke to that and I stand by that statement."

When asked about seizing voting machines, Barr said that he didn’t think the federal government has any basis to do so.

"I see no basis now for seizing machines by the federal government, you know, a wholesale seizure of machines by the federal government," he said. Finally, when asked if the president had the ability to pardon himself, Barr said that he was not going to "opine on a constitutional issue as far as the power goes."

Over the weekend, President Trump and his legal team considered the idea.

-ABC News’ Luke Barr and Alex Mallin.

President-elect Joe Biden is expected to name Miguel Cardona, who currently serves as Connecticut's education commissioner, as his pick for secretary of education, sources familiar with the decision told ABC News on Tuesday.

Throughout his presidential campaign Biden pledged to select a schoolteacher to lead the department, and Cardona fulfills that pledge, having started his career nearly two decades ago as an elementary school teacher in Connecticut, serving 10 years as a school principal and eventually rising through the ranks to become the state's top education official last year.

"First thing, as president of United States -- not a joke -- first thing I will do is make sure that the secretary of education is not Betsy DeVos, [and that] it is a teacher. A teacher. Promise," Biden, who regularly criticized Education Secretary Betsy DeVos, said at a National Education Association forum in July of 2019.

Cardona's background and deep experience in the nation's education system presents a striking contrast with DeVos, a wealthy, long-time Republican donor and political activist who has drawn sustained ire from Democrats and teachers unions throughout her tenure.

Cardona, whose parents moved from Puerto Rico to Connecticut, would be the third Latino, and the first of Puerto Rican heritage, that Biden has named to serve in his Cabinet thus far, following Alejandro Mayorkas named to head the Department of Homeland Security and California Attorney General Xavier Beccera to head the Department of Health and Human Services.

A spokesman for the Biden transition did not respond to a request for comment from ABC News on Cardona's potential nomination.

-ABC News’ John Verhovek and Molly Nagle.