President-elect Trump continues to falsely claim that his 2020 defeat was the result of widespread fraud, and had warned throughout his 2024 campaign that he harboured similar concerns, until his November 5 defeat of Democratic Vice-President Kamala Harris.
Unofficial results show Trump winning 312 electoral college votes to Harris's 226.
Vice-President Kamala Harris will oversee the confirmation of her defeat to Donald Trump. (AP PHOTO)
Harris on Monday will preside over the certification of her defeat to Trump, joining a short list of other vice-presidents to oversee the ceremonial confirmation of their election loss as part of their role of presiding over the Senate.
In a video message, Harris described her role as a "sacred obligation" to ensure the peaceful transfer of power.
"As we have seen, our democracy can be fragile," she said.
"And it is up to each of us to stand up for our most cherished principles."
Harris will join a short list of other vice-presidents to oversee the ceremonial confirmation of their election loss as part of their role of presiding over the Senate.
Richard Nixon did it after losing to John F Kennedy in 1960, and Al Gore followed suit when the US Supreme Court tipped the 2000 election to George W Bush.
Donald Trump rallied supporters before they tried to stop the certification of the election in 2021. (AP PHOTO)
Trump's Republicans also captured a majority in the US Senate in the November 2024 elections, and held a narrow edge in the House of Representatives, which will give Trump leeway in implementing his agenda of tax cuts and a crackdown on immigrants living in the country illegally when he is sworn in on January 20.
Trump has also said he plans to pardon some of the more than 1500 people charged with taking part in the January 6, 2021, assault on the Capitol, when a mob fought with police, smashing its way in through windows and doors and chanting "Hang Mike Pence", referring to Trump's then-vice president, in a failed bid to stop Congress certifying Democratic President Joe Biden's victory.
In the January 6, 2021, melee at the Capitol, rioters surged past police barricades, assaulting about 140 officers and causing more than $US2.8 million ($A4.5 million) in damage.
Multiple police officers who battled protesters died in the weeks that followed, some by suicide.
As a result of that day's violence, Congress passed legislation late in 2022 bolstering guardrails to ensure the certification process is administered in a legal manner.
Many of the changes were directly in response to Trump's actions leading up to and including January 6, 2021.
Donald Trump says he plans to pardon some of the people charged over the storming of the Capitol. (AP PHOTO)
For example, the new law makes clear that the vice president's role is largely ceremonial.
Any objections to a state's results must now be submitted by at least one-fifth of the members of the House and the Senate before triggering debates over the objections.
The House has 435 members and the Senate has 100.
Previously, it had required just one member from each chamber to object to a state's certification.
Meanwhile, the law specifies that the choice of electors must occur according to state laws enacted prior to election day, with governors of the states submitting lists of electors.
Trump and his surrogates in 2021 had attempted to recruit alternate electors sympathetic to his cause.
A large security fence has been erected around the Capitol complex before inauguration day on January 20.
with AP
