The US Congress will meet on Monday to certify the victory of Mr. Donald Trump in the November presidential election, against the current vice president, Kamala Harris.
The vice president is responsible for presiding over the counting of results from each of the nation's 50 states, putting Ms. Harris in the position of certifying her defeat.
The procedure was long a formality in the election process, but four years ago it descended into chaos after Mr. Trump's supporters stormed the Capitol, injuring about 140 police officers, causing damage to the building and forcing lawmakers to take shelter for security reasons.
Similar scenes are not expected on Monday, as Ms Harris has conceded defeat and President Joe Biden has stressed the need for a peaceful transition process.
Authorities have prepared for any eventuality, erecting tall metal barriers around the Capitol complex.
Speaking at the White House on Sunday, President Biden called what happened on January 6, 2021 "one of the most difficult days in American history."
"We must return to the normal transition of power," he said.
He added that Mr Trump's behavior four years ago, which included repeated false claims that he won the election, "was a real threat to democracy".
More than 1,500 people have been charged in connection with the attack on the Capitol. Mr. Trump has promised to announce their pardon after taking office on January 20./ VOA (A2 Televizion)