According to Mr. Meadows’ book rhymed with the then president’s response to “Oh spit, you must have trucks to like me”.
Trump then took another test, which showed a negative result.
“The story that I have COVID before or during the first debate is Fake News,” Trump said.
“In fact, a test revealed that I did not have COVID before the debate.”
A little amazingly retweeted Mr. Meadows Mr Trump’s statement.
Both Mr Trump, then 74, and Mr Biden, then 77, were to show a negative COVID-19 test before the debate on 29 September last year.
Mr. Meadows wrote that Mr Trump showed symptoms of the disease on the day of the debate.
“When we entered the place around five o’clock in the evening, I could feel that he was moving slower than usual,” wrote Mr. Meadows in his book.
“He walked as if he was carrying a little extra weight on his back.”
When asked today that Mr. Trump would potentially expose him to COVID-19, Mr. Biden was dismissive.
“I’m not thinking of the former president,” Mr Biden said.
U.S. top epidemiologist Anthony Fauci said he was unaware that Mr. Trump allegedly tested positive.
“I do not want to specifically talk about who put who in danger,” said Dr. Fauci.
“But I want to say, as I have said, not just for one person, but for everyone, that if you test positive, you should quarantine yourself.”
At the time, it was considered unusual for someone to have such severe symptoms so early in the natural course of the disease.
Most people do not develop symptoms that would require hospitalization for COVID-19 until about a week after catching the virus.
A month later, Trump said he may have caught the virus from a meeting with the families of troops killed during their service.
“They sometimes come within an inch of my face, they want to hug me and they want to kiss me,” he said last October.
“And honestly, I’m not saying they should back up. I do not, but that’s obviously a dangerous thing, I think, if you go after the COVID thing.”
It is not known whether the September 27 incident took place before or after Mr Trump was reportedly tested positive for coronavirus.
On September 26, Mr. Trump also held an event in the White House where he announced his Supreme Court candidate Amy Coney Barrett.
In the days that followed, at least seven participants tested positive.
Large crowds gather outside the White House