In part of the opinion joined only by Justices Thomas and Barrett, Justice Gorsuch limits Pike “as another way to test for purposeful discrimination against out-of-state economic interests” or “protect the instrumentalities of interstate transportation.” Gorsuch rejects a broader reading that would authorize courts to weigh “incommensurable” costs and benefits because that task is “insusceptible to resolution by reference to any juridical principle.” Justices Sotomayor and Kagan acknowledge that Pike inquiries are “difficult,” and courts should proceed “with caution,” but they support the “means-ends tailoring analysis that Pike incorporates,” which “does not raise the asserted incommensurability problems that trouble Justice Gorsuch.” All five justices affirmed the Ninth Circuit’s dismissal of the pork industry’s Pike claims.
In dissent, the Chief Justice—joined by Justices Alito, Kavanaugh, and Jackson—would remand the case for the lower court to decide whether petitioners have stated a claim under Pike. The Ninth Circuit found that the plaintiffs “plausibly alleged” that the California law “will require pervasive changes to the pork production industry nationwide,” but held that these compliance costs were insufficient to sustain a Pike claim. The Chief Justice, however, concluded that the allegations “amount to economic harms against the interstate market, not just particular interstate firms.” Plaintiffs claimed that California’s law would require “compliance even by producers who do not wish to sell in the regulated market.” “Such sweeping extraterritorial effects,” according to the dissent, “even if not considered as a per se invalidation, [are] pertinent in applying Pike.”
Today’s decision complicates future extraterritorial challenges to state clean energy laws. Earlier this year, Minnesota passed a 100 percent clean electricity law over the objections of North Dakota interests who argued that the law regulates extraterritorially and threatened to sue. If they litigate, they will not be able to rely on a per se rule of invalidity but will instead have to rest their case on Pike, as understood by today’s dissent. No court has struck down a state clean energy law solely on Pike, and it seems unlikely that the North Dakota litigants can marshal sufficient facts in their favor. Minnesota’s law does not require “compliance even by producers who do not wish to sell in the regulated [Minnesota] market.”
Finally, Justice Kavanaugh’s solo opinion provides future plaintiffs with alternative litigation strategies. Justice Kavanaugh claims that the pork law at issue reflects a “California knows best economic philosophy—where California in effect seeks to regulate pig farming and pork production in all of the United States.” He is concerned that “California’s novel and far-reaching regulation could provide a blueprint for other States” and may “foreshadow a new era where States . . . effectively force other States to regulate in accordance with those idiosyncratic state demands.” Justice Kavanaugh says that the Import-Export Clause, Privileges and Immunities Clause, and Full Faith and Credit Clause all “deserve further examination” in a future case against this type of law.