It may never happen again in the history of the political world when US President Donald Trump asked his Democratic opponent, Joe Biden, to take a drug test.
Trump's provocative tweet via his Twitter account, hopes Biden can undergo a drug test, either before or after the debate that will take place on Tuesday.
It is understood Trump was unhappy with Biden's previous political debate, claiming he was not running well, as if he was drunk under the influence of drugs.
Earlier, Biden sparked controversy, accusing Amy Coney Barrett of appointing him as part of Trump's 'evil' agenda on health status across the US.
In any case, Biden believes it has never happened in the history of the country that the nomination of a High Court judge took place during the presidential election.
While Trump sees Barrett's appointment as a solution to his troubled campaign. For now, poll results show Trump is behind Biden.
However, Trump did not present any evidence for his allegations, describing the 77-year-old Biden as having mental health problems.
The debate on Tuesday will bring the two together for the first time after a long 'debate' behind the scenes and will be broadcast live, witnessed by millions of US citizens.
Until now Biden has remained calm, giving no further comment on personal attacks and baseless allegations by the US president.
