From the writeup of Trump’s recent Bloomberg News interview:

Trump even revealed his own term for Bannon’s ideology: “alt-left,” a play on Bannon’s ties to the nationalist conservative movement sometimes called the alt-right.

Why alt-left? “Bannon’s more of a libertarian than anything else, if you want to know the truth,” Trump said Monday during an interview with Bloomberg News in the Oval Office.

Bannon isn’t “alt-left”. There isn’t even such a thing as the “alt-left”. Trump knows both of those things.

So why say it?

Because now every leftist commentator everywhere will have to spend the next week saying exactly what I just said. A good week or so of swatting at ghosts.

And every time they open their stupid leftist mouths on the topic, they’ll drive the term “alt-left” further into the national consciousness and make this non-existent thing become an actual thing, just as nebulous, ill-defined, and muddy as the left’s favorite bludgeon of “alt-right”.

From now on, every time a liberal dribbles on about “alt-right”, they’ll have to bring up the “alt-left”, too, if only to deny it.

Welcome to the Streisand Effect, liberal muckrakers.

Well played, Mr. President. Bacon to you, sir!