Remember when Trump... accused Biden of taking performance-enhancing drugs?

In an August 26, 2020 interview with The Washington Examiner, Trump claimed without evidence that his Democrat opponent for the 2020 election was taking performance-enhancing drugs.

He repeated the claim in a September 11, 2020 interview on Fox News.

He has also called for Biden to be tested for drugs on Twitter.

I will be strongly demanding a Drug Test of Sleepy Joe Biden prior to, or after, the Debate on Tuesday night. Naturally, I will agree to take one also. His Debate performances have been record setting UNEVEN, to put it mildly. Only drugs could have caused this discrepancy???
— Donald J. Trump (@realDonaldTrump) September 27, 2020

Trump repeatedly accused Biden of being mentally incompetent, while bragging about his own completion of a basic cognitive exam.

The Washington Examiner – Trump calls for drug tests before Biden debate
Forbes – Trump’s Latest Trolling Of Biden’s Mental State: Calling For Drug Tests Before Debates
Business Insider – President Trump baselessly accuses Biden of taking performance-enhancing drugs during primary debates