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Justice Samuel Alito recused himself from Suncor v. Boulder shortly before the Supreme Court’s scheduled October 5, 2026, hearing, according to an October 1 report. The reported notice gave no reason. His recusal means he will not take part in the upcoming proceedings, but it leaves unresolved questions about his earlier participation in the decision to hear the case and about how justices’ investments intersect with climate litigation.

What is Suncor v. Boulder about?

Boulder, Colorado, sued ExxonMobil and Suncor over climate-related costs and damage. The companies asked the Supreme Court to stop the case from proceeding, raising a central question: does federal law preempt state and local governments from pursuing climate-related damages against oil companies in state court?

The stakes extend beyond Boulder. The report says 11 related state cases were stayed pending the Supreme Court’s decision. Because the scheduled October 5 hearing had not occurred as of October 3, 2026, the arguments and any ruling were still ahead.

What happened with Alito’s recusal?

According to the October 1 report, the Supreme Court clerk sent counsel a brief letter saying Alito would no longer participate. The letter did not explain why. The recusal came about a week before the scheduled arguments.

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The report says Alito did not own stock in ExxonMobil or Suncor, the companies directly involved in the dispute. It says his financial disclosure listed holdings in other corporations facing climate-related lawsuits, including seven fossil-fuel companies. That distinction matters: a financial interest in a party is different from the possibility that a decision could have broader effects on other companies.

Could Alito’s earlier participation have affected the decision to hear the case?

The report says the Court agreed to hear the case in February and Alito participated in the conference at which the justices considered it. Conference deliberations are secret, so the public record described in the report does not establish how he voted or whether his participation mattered.

Under the longstanding practice described in the report, at least four justices must agree to grant review. That leaves a question about whether Alito’s participation could have affected the outcome of the conference; it does not show that his vote was decisive.

The timing also stands out against earlier petitions presenting essentially the same preemption issue. The report says the Court denied nine such petitions between 2023 and 2025, and Alito recused himself from the conferences in all but one. In a 2022 filing, Exxon described Boulder as an “ideal vehicle” and said it involved fewer defendants and was “less likely to present recusal issues.” These details are reported by The College Voter’s republication of Inside Climate News; the underlying filings were not independently reviewed for this article.

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What do Alito’s investments and the ethics debate show?

The report says Alito’s latest financial disclosure, released in August 2026, listed stock in more than 25 corporations, including seven in the fossil-fuel industry, and an Oklahoma mineral interest valued at up to $250,000. It says those holdings were unchanged from the previous year. These figures are the report’s account of the disclosure; the disclosure itself was not independently reviewed here.

The Supreme Court adopted its first code of conduct in 2023. As described in the report, it identifies circumstances requiring recusal, including a justice’s financial interest in a party before the Court. The broader debate is whether justices should hold individual company stocks at all, particularly when cases may have consequences for firms beyond the named parties. The reported facts do not establish that Alito’s holdings affected his judgment.

Legal commentators have framed the issue in different ways. Stetson University law professor Louis Virelli argued, “We spend too much time talking about what is required of the justices. We should be talking about the right thing to do.” Arthur Hellman, a University of Pittsburgh professor emeritus and legal ethics expert, said the late recusal did not address concerns Alito had previously raised about disruption to the Court.

Alito argued in a 2023 memorandum that frequent recusals in such cases could leave the Court without a full bench and “substantially disrupt[] and distort[]” its work. The competing concern is that individual stock ownership can prompt questions about impartiality even when a justice does not own shares in the parties named in a case. Those are arguments about institutional practice, not evidence that a justice was biased in this dispute.

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What the recusal resolves—and what it does not

  • Upcoming proceedings: The report says Alito will not participate in the scheduled hearing.
  • Earlier conference: His participation in the February conference is reported, but the secret deliberations leave his vote and its effect unknown.
  • Broader policy: The recusal does not settle the debate about individual stock ownership or how to handle potential effects on companies beyond the parties.
  • Case outcome: As of October 3, 2026, the hearing had not happened, so the Court had not yet decided the preemption question.

The account and quotations in this article come from The College Voter’s October 1, 2026 republication of an Inside Climate News report: “Alito’s Recusal From a Key Climate Case May Be Too Little, Too Late.” The Supreme Court’s letter, docket, financial disclosure, code, briefs, and underlying statements were not independently reviewed.

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