Trump says Biden can only enter the White House as president if he can 'prove' his 'ridiculous 80M votes' were NOT 'obtained by fraud' as he appears to row back peaceful transition claims

President Donald Trump said on Friday that Joe Biden can only enter the White House if he can prove his votes are not 'fraudulent' - a step back from Thursday's admission he would cede the residence for his Democratic rival in a peaceful transfer of power.

'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. When you see what happened in Detroit, Atlanta, Philadelphia & Milwaukee, massive voter fraud, he’s got a big unsolvable problem!,' Trump tweeted.

Trump has refused to concede the election despite Biden's massive lead in the popular vote and the electoral college. Several foreign leaders have recognized Biden as the president-elect, calling to congratulate him, and so have several top business leaders, including some who are close to Trump.

Additionally, the president's campaign has shown no evidence of massive voter fraud. State officials have also said the election was smoothly run. Trump's legal cases have gone no where. A hand recount of ballots in Georgia confirmed Biden's win there.

Trump's legal team, led by Rudy Giuliani, has tried to move the ball forward. But Giuliani's bizarre press conference at the Republican National Committee headquarters on Monday raised more questions than answers and a hearing-style event in Gettysburg, Pennsylvania, on Wednesday, which Trump called into, revealed no evidence of voter fraud in that state. 

Despite it all, Trump continues to proclaim he's the victor. 

But the president - just one day before on Thanksgiving - said he would leave the White House if the electoral college certifies Biden's victory when it meets on December 14.

President Donald Trump said Friday that Joe Biden could only enter the White House if he proves his 80 million votes are not 'fraudulently or illegally' obtained

Joe Biden leads Donald Trump in the popular vote and in the electoral college

He also admitted that it's a 'very hard thing to concede' the election. 

He stopped short of admitting that meant he had lost - despite Biden's huge lead in Electoral College votes - and refused to say if he would attend the inauguration.

When asked whether he would vacate the building, allowing a peaceful transition of power in January, the president said: ‘Certainly I will. But you know that.' 

But, on Friday, Trump spent his morning in a slew of angry Twitter rants, complaining about the social media company, alleging the 2020 election was a 'scam,' and retweeting campaign style videos with a fight theme. 

'This is what Communist countries do!,' Trump tweeted about Twitter after it suspended the account of one of his Republican allies trying to help him over turn the election results. 

'Big Tech and the Fake News Media have partnered to Suppress. Freedom of the Press is gone, a thing of the past. That’s why they refuse to report the real facts and figures of the 2020 Election,' he complained. 

He shot off more than two dozen tweets and retweets before arrived at his Trump National Golf Course in Sterling, Va., for a game. He also played a round of golf on Thursday morning. Twitter has put labels on many of his tweets for containing disputed information.

He will travel to Camp David on Friday afternoon to meet with his family after his golf game.

Trump longtime aide Dan Scavino, who is close to the president and his family, posted a photo on Twitter of all the adult Trump children together outside sitting around a fire pit. Their significant others are with them.

The location on the tweet says 'Camp David' - the secluded presidential retreat in Maryland - and it was posted Thursday night.

In the picture, Kimberly Guilfoyle is next to her boyfriend Donald Trump Jr., Jared Kushner has his arm around his wife Ivanka Trump, Lara Trump sits in Eric Trump's lap, and Tiffany Trump is next to her boyfriend Michael Boulos.

Longtime Trump aide Dan Scavino (center) posted a pic of President Trump's adult children and their significant others: Kimberly Guilfoyle, Donald Trump Jr., Jared Kushner, Ivanka Trump, Lara Trump, Eric Trump, Tiffany Trump and Michael Boulos

Trump took his first questions from reporters since the election on Thursday, after he spoke to U.S. troops for the Thanksgiving holiday.

But he got into a heated, angry exchange with one reporter who pressed him on when he would concede to Biden.

‘I’m the President of the United States. Don’t ever talk to the president that way,' Trump told Reuters correspondent Jeff Mason on Thursday.

In his 25 minute back-and-forth with the media, Trump didn't concede his loss and insisted his legal arguments would go ahead. He argued he has time until the inauguration - which is 54 days away - but admitted it's ticking fast. 

He reiterated unproven conspiracy theories about voting machines changing votes for him to Biden, complained the election was 'rigged' and alleged Biden only got his record 80 million votes through 'massive fraud.' 

The president grew angry with Reuters correspondent Jeff Mason (pictured above in 2017), who interrupted Trump while he was giving his answer about whether he would concede if the Electoral College voted for Joe Biden on December 14

Trump is trying to over throw the election results by going to court in battleground states but his legal cases have been going nowhere. States are in the process of certifying their results.

'Time isn't on our side,' the president conceded. 

Mason asked the president if he would consider offering a proper concession after the Electoral College meets on December 14. That is when Biden’s victory will be made official.

Trump, however, said that the Electoral College should not confirm Biden’s win.

‘Well if they do, they made a mistake, because this election was a fraud,’ the president said in response to Mason’s question.

‘Just so you understand, this election was a fraud,’ he continued.

Trump said it was inconceivable that Biden won, since the former vice president captured more votes in key swing states than Barack Obama did in his election victories.

The United States has grown in population size by 27 million people since Obama first ran in 2008 and this year's contest. 

‘[Biden] is beating Obama in swing states, which are the states that mattered for purposes of the election,’ the president said.

‘So no, I can’t say that [I will concede] at all. I think it’s a possibility… they’re trying to, look, between you people…’

At this point, Mason interrupts the president and begins to ask his next question before Trump finished giving his response.

‘Don’t talk to me that way,’ Trump snapped at Mason. ‘You’re just a lightweight. Don’t talk to me that way. Do