With Tuesday night’s debate approaching, Kamala Harris’s height — she is 5 feet 4¼ inches tall — came up over the weekend as a potential issue during the event.

The former President Donald J. Trump, whose reported height is 6-foot-3, called attention to their size discrepancy on his social media platform, Truth Social, saying no accommodations should be made to make them appear closer to the same size.

“No boxes or artificial lifts will be allowed to stand on during my upcoming debate with Comrade Kamala Harris,” he wrote. He added that such accommodations — which he claims Michael Bloomberg once demanded — would be “a form of cheating.”

Ms. Harris has not commented on whether she has made a request for any sort of lift. But seeing the candidates together may make many who tune in for the debate aware of her actual height for the first time — a reality that could have been previously masked by what some call Tall Energy.

Ms. Harris’s relatively modest height, and how people tend to get it wrong, has come up before.

In signature prosecutorial fashion, she addressed the issue during a January interview with Katie Couric in which Ms. Couric recited a Wikipedia entry that had Ms. Harris erroneously listed as 5-foot-2. Ms. Couric, no giant at just under 5-foot-4, said she was excited to discover that “Kamala is short like me.”

“That is absolutely incorrect,” Ms. Harris said with a smile that suggested she was accustomed to such comments. “With heels, which I always wear, I’m 5-7½, thank you very much.”