A coalition of conservative legal organizations is pressing Senate Judiciary Committee leaders to investigate whether Supreme Court Justice Elena Kagan violated federal ethics rules by refusing to recuse herself from Suncor Energy v. Boulder County, a high-stakes climate change lawsuit headed to the Court next term. The groups argue that Kagan's prior written endorsement of a judicial reference manual, one that included a climate science chapter later pulled as biased, shows she cannot serve as a neutral arbiter in the case.
The coalition, which includes the Judicial Crisis Network, sent its letter to committee leaders on Monday, Fox News Digital reported. The letter asks lawmakers to hold hearings and determine whether Kagan complied with federal ethics law and the Supreme Court's own code of conduct.
The timing is pointed. Kagan is scheduled to appear before the House Appropriations Committee alongside Justice Amy Coney Barrett to testify on the Court's proposed fiscal year 2027 budget. And Suncor Energy v. Boulder County, a case in which Colorado local governments seek to hold oil and gas companies financially liable for alleged contributions to climate change under state law, is expected to be argued before the justices next term.
At the center of the recusal demand is the Reference Manual on Scientific Evidence, a resource published through the Federal Judicial Center and used by judges to evaluate scientific claims in the courtroom. Kagan wrote the foreword to the manual. In it, she encouraged judges to use the resource when confronting lawsuits involving climate science.
The manual included a climate science chapter that promoted scientific theories frequently relied upon by state and local governments suing energy companies over climate change. Republican lawmakers and a coalition of Republican attorneys general later accused the chapter of presenting a one-sided view. The criticism was sharp enough that the Federal Judicial Center removed the chapter from the version distributed to federal judges.
That removal is central to the coalition's argument. If the chapter was too biased to remain in a judges' reference guide, the groups contend, then a justice who endorsed the manual, and specifically pointed judges toward climate science cases, cannot credibly claim impartiality when one of those very cases reaches the high court.
Judicial Crisis Network President Carrie Severino framed the issue in blunt terms:
"Justice Kagan's conflicts of interest on climate litigation preclude her from serving as the 'neutral arbiter' required by her oath. By endorsing and penning a promotional preface for a judges' reference manual featuring an overtly biased 'climate science' chapter, she embraced the partisan ideals and legal theories driving state and local climate lawfare. The manual's bias was so egregious that Congress and state attorneys general called for its removal."
Severino added that Kagan "must recuse herself immediately."
The letter does not rest on the manual alone. The coalition cited what it described as a history of inconsistent recusals by Kagan, pointing to three prior cases where her participation raised questions.
In NFIB v. Sebelius, the landmark Affordable Care Act challenge, Kagan participated despite having served as solicitor general during the Obama administration while the law was being defended. In American Tradition Partnership v. Bullock, she weighed in on issues tied to Citizens United, a decision she had argued against as solicitor general. The Court's First Amendment jurisprudence has remained a flashpoint in the years since.
Most striking is United States v. Briones. In that case, the Supreme Court itself later acknowledged that Kagan should have been recused because of her prior involvement while serving in the executive branch.
Taken together, the coalition argues, these episodes form a pattern: a justice who has repeatedly declined to step aside when her impartiality could reasonably be questioned.
The call for a Senate investigation carries an unmistakable subtext. In 2023 and 2024, when Democrats controlled the Senate Judiciary Committee, the panel launched ethics investigations into Justices Clarence Thomas and Samuel Alito. Those probes followed reports about undisclosed luxury travel, gifts, and relationships with wealthy benefactors. The committee held hearings and authorized subpoenas. The inquiry did not lead to impeachment proceedings.
Now, with the committee under different leadership, conservative groups want to know whether the same scrutiny will be applied to a justice appointed by a Democratic president. The question is fair. If the Senate Judiciary Committee treated ethics concerns about conservative justices as worthy of hearings and subpoenas, consistency demands the same standard when a liberal justice faces documented concerns about recusal practices.
The Supreme Court has been at the center of intense public debate in recent terms, from internal divisions on the emergency docket to major rulings on executive power and election law.
Suncor Energy v. Boulder County is not a minor case. It represents a broader legal strategy by state and local governments to use state courts and state law to hold energy companies financially liable for climate change. The outcome could shape the legal landscape for climate litigation nationwide, determining whether fossil fuel companies face a wave of state-level lawsuits or whether such claims belong in federal court, where they have generally fared poorly.
A justice who has already endorsed the scientific framing used by plaintiffs in these cases, and who wrote a foreword encouraging judges to engage with that framing, sits in a fundamentally different position than one approaching the dispute fresh. That is the coalition's core point, and it is difficult to dismiss on its face.
The Court has issued several consequential decisions this term, including rulings on executive authority over independent agencies and immigration enforcement powers. Each has drawn scrutiny over how individual justices approach politically charged questions. Suncor promises to be no different.
The Supreme Court's Public Information Office did not immediately respond to Fox News Digital's request for comment on the recusal demand. Kagan herself has not publicly addressed the coalition's letter or the underlying argument about the Reference Manual on Scientific Evidence.
That silence may not hold. Kagan's scheduled appearance before the House Appropriations Committee puts her in front of lawmakers at the very moment these questions are being raised publicly. Whether any member presses her on the recusal issue remains to be seen.
The coalition's letter asks for hearings, not impeachment, not removal, just the kind of institutional oversight that the Senate Judiciary Committee has shown it is willing to exercise when the political incentives align. The question now is whether those incentives extend beyond conservative justices.
Several open questions remain. The full list of organizations in the coalition has not been disclosed beyond the Judicial Crisis Network. The specific federal ethics statutes the groups allege Kagan violated have not been publicly identified by statute number. And the verbatim text of Kagan's foreword, the passages the coalition says constitute an endorsement of climate litigation theories, has not been released alongside the letter.
The Court's recent rulings on election law and other politically sensitive matters have already tested public confidence in the justices' ability to set aside personal views. A climate case with billions of dollars and sweeping regulatory implications on the line will test it further.
Recusal rules exist for a reason. They protect the Court's legitimacy by ensuring that no justice sits in judgment on a case where her impartiality might reasonably be questioned. If a chapter was too biased for federal judges to read, the justice who endorsed the book that carried it ought to explain why she belongs on the bench that decides the case it was written to influence.
