POLL OF THE DAY: Do you think Michelle Obama should replace Joe Biden and run for President? - VOTE NOW

According to the New York Times, the ally said Biden knows his next few appearances must go well if he's to convince the American public that he's fit to take on the job for another four years.

The ally told the outlet: "He knows if he has two more events like that, we're in a different place".

And sending speculation swirling, White House spokesperson Andrew Bates immediately slated the NYT's claims on social media as "absolutely false".

This came just a day after the first call for him to resign from within the Democrats in Congress.

House Representative Lloyd Doggett became the first congressional Democrat to call for Biden to step aside on July 2 in a statement saying he was "hopeful" the President "will make the painful and difficult decision to withdraw".

The Texas Democrat lawmaker said: "While much of his work has been transformational, he pledged to be transitional.

"He has the opportunity to encourage a new generation of leaders from whom a nominee can be chosen to unite our country through an open, democratic process."

Biden currently has an interview slated for Friday with ABC News, as well as campaign trail appearances in Pennsylvania and Wisconsin, but the President's pressure to perform has reached an all-time high.

A top Biden adviser told the NYT that the 81-year-old was "well aware of the political challenge he faces" - and his team has remained firm that he will fight on.

Now, despite the former first lady having previously ruled out running, betting odds have soared in favour of the wife of Barack Obama for her to replace Biden in the election race this November.

Speaking to GB News, Professor of International Politics Scott Lucas said Obama "rates highly in the approval ratings" with American voters and would be a "very capable candidate" even at this late stage of the election trail.

Lucas explained: "We've got to see if Biden can be persuaded to step aside. But even if he could, Michelle Obama for years has been urged to get into politics.

"For the sake of her family, the sake of the life she prefers to run, she would rather be a very committed, a very effective activist, but one who is not actually on the political front lines. And there's no sign that that view has been changed."

With that in mind, do you think Michelle Obama should replace Joe Biden and run for President? Have your say.