Here is how events are unfolding. All times Eastern.
Jan 19, 2021, 7:46 PM EST
Florida Trump supporters plan welcoming gathering
Trump's supporters in Florida are planning to line the streets in a show of support for his final presidential motorcade Wednesday morning from Palm Beach International Airport to Mar-a-Lago.
A moving truck is parked outside Mar-a-Lago in Palm Beach, Fla. on Jan. 18, 2021.
The Palm Beach Post via USA Today Network
Trump is expected to land around 11 a.m. and in an email Tuesday to supporters, Club 45, a popular pro-Trump Florida group, urged locals to show up early to line the streets and give the president "the largest welcome home greeting ever."
The email included a photo of Trump waving from inside another motorcade.
-ABC News' Will Steakin
Jan 19, 2021, 6:01 PM EST
Biden, Harris hold memorial for Americans lost to COVID-19
Just hours before they are to be sworn into office, President-elect Joe Biden and Vice President-elect Kamala Harris honored the 400,000 Americans who have died as a result of the novel coronavirus with a tribute in front of the Lincoln Memorial Reflecting Pool.
After an invocation, Harris called on Americans to stand together.
"For many months we have grieved by ourselves. Tonight we grieve and begin healing together. Though we may be physically separated, we, the American people, are united in spirit," she said.
With the Washington Monument in the background, President-elect Joe Biden with his wife Jill Biden and Vice President-elect Kamala Harris with her husband Doug Emhoff listen to Cardinal Wilton Daniel Gregory speak during a COVID-19 memorial, Jan. 19, 2021, in Washington, D.C.
Evan Vucci/AP
Biden thanked the country's nurses and also echoed the call for unity.
"To heal we must remember, and it’s hard sometimes to remember, but that’s how we heal," he said.
As the ceremony ended, 400 lights along the pool were lit up, symbolizing the lives lost. Church bells around the country rang in unison and gospel singer Yolanda Adams sang Leonard Cohen's "Hallelujah."
Incoming Second Gentleman Doug Emhoff, Vice President-elect Kamala Harris, incoming First Lady Jill Biden, and President-elect Joe Biden watch as a Covid-19 Memorial is lit at the Lincoln Memorial in Washington, DC, Jan. 19, 2021 to honor the lives of those lost to Covid-19.
Patrick T. Fallon/AFP via Getty Images
Jan 19, 2021, 4:26 PM EST
White House releases Trump's pre-taped farewell address
The White House has released a pre-taped farewell address from President Trump on his final full day in office.
"We did what we came here to do – and so much more," Trump said, speaking from scripted remarks directly into the camera and standing behind a lectern with the presidential seal. "This week, we inaugurate a new administration and pray for its success in keeping America safe and prosperous. We extend our best wishes, and we also want them to have luck -- a very important word."
President Donald Trump makes remarks on a television monitor from the White House Briefing Room during his last day in office, Jan. 19, 2021.
Carlos Barria/Reuters
Trump thanked several people, including Vice President Mike Pence.
"Most of all, I want to thank the American people," Trump said. "To serve as your president has been an honor beyond description. Thank you for this extraordinary privilege."
Trump then condemned the riot at the Capitol and called on Americans to "unite around our shared values."
"All Americans were horrified by the assault on our Capitol. Political violence is an attack on everything we cherish as Americans. It can never be tolerated," Trump said.
He warned that the greatest danger the country faces as he leaves office is "a loss of confidence in our national greatness" -- going on to talk about the shared "heritage" of the country under threat and condemning "political censorship and blacklisting."
"Now, as I prepare to hand power over to a new administration at noon on Wednesday, I want you to know that the movement we started is only just beginning," he said, closing out the 20-minute farewell address.