> The plaintiffs argue and the Court concludes that the President lacks authority under IEEPA to impose tariffs. I disagree. In accord with Judge Taranto’s careful and persuasive opinion in the Federal Circuit, I would conclude that the President’s power under IEEPA to “regulate . . . importation” encompasses tariffs. As a matter of ordinary meaning, including dictionary definitions and historical usage, the broad power to “regulate . . . importation” includes the traditional and common means to do so—in particular, quotas, embargoes, and tariffs.

That doesn't sound like "well, this would be too hard to undo" to me, and making that argument elsewhere doesn't diminish the main point.