Donald Trump challenges Joe Biden to prove his votes

"It's going to be a very hard thing to concede", Trump continued.

Trump's comments are the closest he has come to admitting defeat in the election.

Mason pressed Trump on the question multiple times. Biden is due to be sworn in as President on January 20.

"This election was a fraud", Trump said, again without providing any evidence during his remarks to reporters at the White House after he spoke to military personnel via video-link on the Thanksgiving holiday.

Trump tweeted that Biden can only enter the White House as president if he can prove that his "ridiculous 80,000,000 votes were not fraudulently or illegally obtained".

He said that in his first 100 days in office, he would tackle the Covid crisis, scrap Trump policies "damaging" the environment and push legislation offering millions of undocumented USA residents a route to citizenship.

The Electoral College vote and the ultimate declaration of the victor by Congress on January 6 are usually symbolic events, but since Trump has declined to concede, they may take on more significance this time.

Vote certification at the local and state level is typically a ministerial task that gets little notice, but that changed with Trump's fierce but fruitless legal challenges and attempts to manipulate the certification process in battleground states he lost. Wisconsin and Arizona, two more states that flipped to Biden, are set to certify their results next week."Massive fraud has been found".

Trump spoke to reporters in the White House's ornate Diplomatic Reception Room after holding a teleconference with USA military leaders stationed across the globe. He added that if more states were like his and did not allow absentee ballots "coming from people [when] you don't know who they are", these problems would not have occurred.

Adam Shaw is a reporter covering US and European politics for Fox News. He said he didn't want to talk about running in 2024 yet since in his eyes the 2020 race was not yet over. "And I would have won by a tremendous amount", Trump said, quickly correcting himself to say, "And I did win by a tremendous amount".

When Trump does actually vacate the White House, what is next for him?

After weeks of refusing to concede the election and claiming it was "rigged", Trump finally fielded questions from reporters in the ornate Diplomatic Reception Room on Thursday.

"This was a massive fraud", Trump said of the election.