At times, the Supreme Court goes through jurisprudential fads. I am not referring to any particular substantive doctrine. Rather, some idea gets in the ether, and the Justices try to apply it in different contexts.
In recent terms, the Justices seem to be going through a fad based on as-applied and facial challenges.
United States v. Hansen (2003) cast some doubt on the ability of plaintiffs to bring facial overbreadth challenges under the First Amendment. In Rahimi (2024), the Court treated the motion to dismiss as a facial challenge, rather than an as-applied challenge, and upheld 922(g)(8) under the Salerno test. Justice Gorsuch's concurrence seemed to agree with this framing. In NetChoice (2024), all nine members of the Court agreed that both the Fifth and Eleventh Circuits failed to apply the proper standard for a facial challenge. Rahimi and NetChoice were decided back-to-back, and it was not clear to me why the facial challenge bar was lower for the First Amendment than for the Second Amendment. And in Trump v. United States (2024), Justice Barrett conceived of the immunity doctrine in terms of as-applied challenges. On July 2, I wrote "The other story of this term is that the Justices have absolutely no idea what to do with facial challenges--see Rahimi, Trump, and NetChoice."
In TikTok v. Garland (2025), the Court ruled that the prohibition was "facially content neutral," but would not consider an exclusion in the statute which was "not within the scope of petitioners' as-applied challenge." In Williams v. Reed (2025), Justice Thomas in dissent faulted the majority for ruling on an as-applied challenge, when the petition raised only a facial challenge. In Bondi v. VanDerStock (2025), the Court recharacterized the plaintiffs' as-applied challenge into a facial challenge under the Salerno test. (I was counsel in this case, and can attest how the Court botched the record.) At the time, I speculated whether Salerno would replace Chevron, as another doctrine to make it harder to challenge federal regulations. Treating a case as a facial challenge is just another way of making sure the plaintiff loses. And indeed, a recent JREG post suggests that DOJ is attempting to use Salerno with VanDerStock as a new deference doctrine.
Maybe all of these cases were a coincidence. But I think it is a fad. Somehow, this issue has gotten into the minds of the Justices, and they keep bringing it up in different cases, even where it is not needed to decide the case.
The oral arguments in Hecox and B.P.J. suggest that the Court is still focusing on the line between facial and as-applied challenges.
Equal protection claims are brought facially. I never even considered the alternative. For example, consider an affirmative action case like Students for Fair Admission. The group argued that Harvard and UNC used unconstitutional racial classifications against all applicants. To be sure, the plaintiffs showed they were injured to establish standing. But the volumes of data submitted in this case turned on the admission policies more generally, and not the particulars of the plaintiffs.
The same approach applied to Fisher v. University of Texas, Austin. Abigail Fisher had to show she was injured to establish standing: she applied to UT, paid an application fee, and was rejected. But the case did not turn on how Fisher's individual file was reviewed. Rather, it considered UT's policy more generally. Again, she brought a facial challenge. And the requested remedies in the affirmative action cases were the wholesale invalidation of the policy, not an order that Fisher or members of SFFA had to be admitted. Indeed, by the time Fisher II was decided, the plaintiff had already graduated from LSU, and was no longer seeking admission to UT.
Is it possible to have an as-applied challenge based on the Equal Protection Clause? I'll admit, before Tuesday, I had never considered the issue. (I have not followed the Fourth Circuit litigation closely.) The closest I could think of was Village of Willowbrook v. Olech (2000). This largely-overlooked per curiam opinion held that a plaintiff could establish a class of one under the Equal Protection Clause even "where the plaintiff did not allege membership in a class or group." The Court noted that a class of one equal protection claim is made "where the plaintiff alleges that she has been intentionally treated differently from others similarly situated and that there is no rational basis for the difference in treatment." Of course, it is very difficult to prevail under a rational basis test, but in egregious cases such as Olech it is possible. One of my first articles posited that individual homeowners could bring Olech equal protection claims to block eminent domain seizures. Creative, perhaps, but the idea did not catch on. Indeed, the Court has only cited Olech a few times over the past quarter-century.
In Hecox and B.P.J., Justice Kagan spent some time asking if it was even possible to bring an as-applied equal protection claim.
Consider this colloquy between Justice Kagan and Idaho Solicitor General Alan Hurst.







