(Business Insider) –

In a Friday tweet filled with conspiracy theories and lies, President Donald Trump implied he would not allow President-elect Joe Biden to take office — which he does not have the power to do — unless Biden proves his election win was not fraudulent.

“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, baselessly alleging election fraud and malfeasance in four heavily Black cities in states that voted for Biden.

Biden does not have to disprove mass fraud to become president, and there is no evidence of widespread voter fraud in the 2020 election.

Biden won 306 electoral votes compared with Trump’s 232, and Biden won the popular vote by a margin of 4 percentage points, 51% to 47%, according to Insider and Decision Desk HQ. He is the first presidential candidate in history to win over 80 million votes.

GeorgiaMichigan, and Pennsylvania certified their election results after a statewide risk-limiting audit in Georgia and multiple failed legal challenges from the Trump campaign in Michigan and Pennsylvania. The Trump campaign requested recounts in Georgia and in two Wisconsin counties; both are expected to affirm Biden’s victories in the states.

There is no evidence of widespread voter fraud in any of the cities in Trump’s tweet. In the weeks since Election Day, neither the Trump campaign nor its allies have proved a level of fraud, misconduct, or malfeasance that would justify the remedies they have sought, which include halting the counting of ballots, disqualifying large numbers of ballots, and preventing the formal certification of election results.

Many of the lawsuits filed have not alleged significant fraud at all but sought to halt ballot counting and certification over disputes about the access that election observers were given to watch ballot counting and about officials’ treatment of mail ballots.

Furthermore, Trump actually improved on his 2016 performance in some cities, including Philadelphia, while Biden made most of his gains in the suburbs, as outlets including Politico and The Washington Post have noted.

Trump spent the Thanksgiving holiday perpetuating nonsensical and often contradictory claims of voter and election fraud on Twitter and in an appearance at the White House, where he also said he would not concede but would voluntarily leave the White House if the Electoral College voted to make Biden president.

Trump does not have the authority to determine whether Biden “can enter” the White House. After states certify their election results, their presidential electors will formally vote on December 14.

And after a weeks-long stalemate, the General Services Administration has formally ascertained Biden as the president-elect, kicking off the official transition process and sharing of resources between the outgoing and incoming administrations.

Trump’s campaign is continuing to raise money and ask for donations — a substantial portion of which is going toward paying off the campaign’s debts and to Trump’s new leadership PAC — as he refuses to concede and pushes discredited allegations of election fraud.