In Heather Cox Richardson’s calm response to the Biden v. Trump debate, she said that Trump was using the “Gish Gallop” on Biden by overwhelming him with lies and nonsense. The lies and nonsense came so rapidly and assuredly that Biden was stuck with the choice of responding to them, which would entangle him in a web of Trump’s lies, or leave them unchallenged, as if they were true.

She wrote:

It went on and on, and that was the point. This was not a debate. It was Trump using a technique that actually has a formal name, the Gish gallop, although I suspect he comes by it naturally. It’s a rhetorical technique in which someone throws out a fast string of lies, non-sequiturs, and specious arguments, so many that it is impossible to fact-check or rebut them in the amount of time it took to say them. Trying to figure out how to respond makes the opponent look confused, because they don’t know where to start grappling with the flood that has just hit them.

I looked up the Gish Gallop.

The Gish gallop is a rhetorical technique that involves overwhelming your opponent with as many arguments as possible, with no regard for the accuracy, validity, or relevance of those arguments. For example, a person using the Gish gallop might attempt to support their stance by bringing up, in rapid succession, a large number of vague claims, anecdotal statements, misinterpreted facts, and irrelevant comments.

The Gish gallop is also known as argument by verbosity, proof by verbosity, and shotgun argumentation. It was given the name “Gish gallop” by Professor Eugenie Scott—then the executive director of the National Center for Science Education—who used it to describe the common format of debates with Duane Gish, a Young-Earth creationist, stating that “the creationist is allowed to run on for 45 minutes or an hour, spewing forth torrents of error that the evolutionist hasn’t a prayer of refuting in the format of a debate”.

The Gish gallop is widely used in debates on various topics, so it’s important to understand it.

Yup, that’s Trump. He probably never heard of it. He exemplifies it. He spouts nonsense and lies because it comes naturally to him.