Trump-Biden transition: Attorney Sidney Powell back at White House Sunday

On the same day Vice President-elect Kamala Harris plans to visit Georgia to campaign for Democratic Senate candidates Jon Ossoff and Rev. Raphael Warnock, Ivanka Trump will be there to campaign for their GOP opponents, Sens. Kelly Loeffler and David Purdue, the Georgia GOP announced in a tweet.

“Excited to welcome @IvankaTrump to Georgia on Monday to campaign for @Perduesenate & @KLoeffler!” the party tweeted, sharing an article by Atlanta’s Fox station that says the president's daughter and adviser is scheduled to make three stops focusing on the Atlanta suburbs, including Milton, Suwanee and Walton County.

Both Republicans and Democrats have homed in on the runoff election as it will determine which party holds power in the U.S. Senate.

-ABC News' Ben Gittleson

Vice President-elect Kamala Harris will travel to Suwanee and Columbus, Georgia, on Monday in a show of support for Democratic Senate candidates Jon Ossoff and Rev. Raphael Warnock ahead of their runoff races on Jan. 5.

The visit will fall nearly a week after Biden traveled to Atlanta to stump for the candidates.

Trump chose Georgia as the location of his first and only rally since the election to air his grievances with the presidential election and stump for sitting GOP Sens. Kelly Loeffler and David Purdue. Vice President Mike Pence has already made two trips to the Peach State this month, calling Georgia the GOP's "last line of defense."

The runoff election will determine which party holds power in the U.S. Senate.

-ABC News' Beatrice Peterson

It would qualify as audacious to expect hope in anything other than small packages this dismal year.

So it is surprising that Washington heads into the holidays with some of the best news it's been able to deliver in some time.

COVID-19 vaccine development has brought historic breakthroughs, as dramatized Friday morning when Vice President Mike Pence received his first shot live on television.

Bitter post-election fights over the integrity of the vote are sputtering to a close, with Monday's Electoral College vote providing a pivot point for Republicans to accept former Vice President Joe Biden as president-elect.

And Congress is closing in on deals to keep the government open and provide new rounds of COVID-19 relief, though not without some drama that could drag things close to Christmas.

There are more than enough reasons for despair as a long winter begins. Few, least of all Biden and his team, are mistaking positive signs for a breakthrough of bipartisanship -- certainly not so long as Trump's grip on the GOP continues.

Something else that made this week stand out: Trump has said almost nothing in public. He'll make plenty of noise over the next month, but a post-Trump world might be coming into view.

-ABC News' Political Director Rick Klein

Biden on Thursday morning attended Mass at St. Joseph on the Brandywine Catholic Church, where the Bidens worship and where the remains of Biden's first wife, Neilia, and two children, Naomi and Beau, are buried in the church's adjacent cemetery.

It’s the 48th anniversary of the death of his wife and his infant daughter who were struck by a tractor-trailer as Neilia took the kids to pick out a Christmas tree. The tragedy occurred shortly after Biden was elected to his first term in the U.S. Senate.

Biden's son Hunter and late son Beau, ages 3 and 4 at the time, were also seriously injured. The Senator-elect ultimately took his oath of office from from his children's beside at a Delaware hospital.

The president-elect has no other public events scheduled for Friday.