A coalition of conservative legal organizations sent a letter to Senate Judiciary Committee leaders on Monday pressing for a formal investigation into whether Supreme Court Justice Elena Kagan violated federal ethics rules by refusing to step aside from a major climate change case headed to the high court next term. The groups argue Kagan compromised her impartiality years ago, and that the evidence is already on the public record.
At the center of the dispute is Suncor Energy v. Boulder County, a case that asks whether Colorado local governments can use state law to hold oil and gas companies financially liable for their alleged contributions to climate change. The case carries enormous stakes for energy producers and for the broader wave of "climate lawfare" brought by progressive municipalities against fossil fuel companies. And the coalition, led in part by the Judicial Crisis Network, says Kagan has no business hearing it.
The coalition's argument rests on a specific act: Kagan authored the foreword to the Federal Judicial Center's Reference Manual on Scientific Evidence. In that foreword, Fox News Digital reported, Kagan told judges they would increasingly confront lawsuits involving "climate science" and encouraged them to use the manual as a resource for evaluating scientific evidence.
The manual included a climate science chapter that promoted scientific theories frequently relied upon by state and local governments suing oil and gas companies over climate change, the very legal theories at the heart of Suncor.
That chapter did not survive scrutiny. Republican lawmakers and a coalition of Republican attorneys general accused it of presenting a one-sided view. The criticism was sharp enough that the Federal Judicial Center ultimately removed the chapter from the version of the manual distributed to federal judges.
In other words, the reference guide Kagan personally endorsed was later stripped of its climate content because the material was deemed biased. And now she is set to hear the case that chapter's science was designed to support.
Judicial Crisis Network President Carrie Severino did not hold back. In a statement accompanying the letter, Severino laid out the group's position directly:
"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 followed with a blunter demand. Kagan's endorsement of the manual and her support of what the coalition calls "climate-lawfare theories," Severino said, are proof she cannot sit on the case fairly.
"Kagan's implicit judicial endorsement of the manual and her support of climate-lawfare theories are evidence she cannot remain impartial on climate litigation, including the Court's upcoming Suncor case. She must recuse herself immediately."
The Supreme Court's Public Information Office did not immediately respond to Fox News Digital's request for comment on the recusal calls. Justice Kagan herself has not publicly addressed the coalition's letter.
The letter does not treat the Suncor situation as an isolated concern. The coalition points to what it describes as a history of inconsistent recusals by Kagan, citing three prior cases by name.
First, NFIB v. Sebelius, the landmark Affordable Care Act case. Kagan participated in that decision despite having served as solicitor general during the Obama administration while the law was being defended. Critics at the time raised the same question now being asked about Suncor: how can a justice who helped build the legal framework for one side then sit in judgment of the dispute?
The internal tensions among Supreme Court justices over questions of judicial philosophy and consistency are not new, but the coalition's letter suggests Kagan's recusal record stands apart.
Second, American Tradition Partnership v. Bullock, which revisited issues related to Citizens United. Kagan had argued against Citizens United as solicitor general, yet she participated in the follow-on case.
Third, and perhaps most damaging, 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. The coalition treats Briones as a concession from the Court that Kagan's recusal judgment has failed before.
The letter asks the Senate Judiciary Committee to hold hearings and investigate whether Kagan complied with federal ethics law and the Supreme Court's own code of conduct. Public confidence in the judiciary, the coalition argues, depends on justices stepping aside whenever their impartiality "might reasonably be questioned."
The timing of this push carries its own political charge. During 2023 and 2024, when Democrats controlled the Senate Judiciary Committee, the panel launched ethics investigations into Justices Clarence Thomas and Samuel Alito following 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 are effectively asking: if the Senate was willing to scrutinize Thomas and Alito, will it apply the same standard to a liberal justice whose conduct raises a different but equally concrete ethics question?
The contrast matters. The Thomas and Alito investigations centered on financial disclosures and personal relationships. The Kagan complaint centers on something arguably more direct, a sitting justice who authored promotional material for a publication whose content was later deemed so biased it had to be removed, and who now intends to hear the very case that content was designed to influence.
Scrutiny of individual justices' conduct on the bench has become a recurring theme in recent terms, with questions about impartiality, temperament, and consistency drawing attention from both sides of the aisle.
The recusal controversy arrives at an awkward moment for Kagan. She is scheduled to appear alongside Justice Amy Coney Barrett before the House Appropriations Committee on Tuesday to testify on the Supreme Court's proposed fiscal year 2027 budget.
That appearance will put Kagan in front of lawmakers at the very moment conservative organizations are calling for a separate committee to investigate her ethics compliance. Whether any House members raise the Suncor recusal issue during the budget hearing remains to be seen, but the timing gives the coalition's letter an immediate public stage.
The broader landscape of judicial accountability continues to evolve. A Utah Supreme Court justice recently stepped down amid questions about professional relationships with lawyers, and other state-level courts have faced their own recusal and ethics controversies in recent months.
Suncor Energy v. Boulder County is not a minor procedural dispute. The case will determine whether local governments across the country can deploy state tort law to extract damages from oil and gas companies for climate change. A ruling favorable to Boulder County could open the floodgates for similar lawsuits nationwide, effectively allowing progressive cities and counties to regulate the energy industry through litigation rather than legislation.
That is precisely why the recusal question matters beyond Kagan personally. If the justice who endorsed the scientific framework undergirding these lawsuits also casts a vote deciding their legal viability, the losing side, and much of the public, will have reason to question whether the outcome was predetermined.
The coalition's letter frames the issue in those terms. Recusal rules exist not only to prevent actual bias but to prevent the appearance of bias. A justice who wrote the foreword to a manual containing a chapter so slanted it had to be pulled, a chapter promoting the exact theories at issue in the case, creates precisely the kind of appearance those rules were designed to prevent.
Across the legal world, questions about when judges should step aside continue to generate controversy. Recent state-level disputes over prosecutorial and judicial conduct have reinforced how much public trust depends on officials following the rules that apply to everyone else.
Whether the Senate Judiciary Committee acts on the coalition's request is an open question. The committee's willingness to investigate Thomas and Alito set a precedent. Declining to apply the same energy to a liberal justice would confirm what many conservatives already suspect: that ethics enforcement at the Supreme Court level is a one-way street.
Kagan has not responded publicly. The Supreme Court has not commented. The case moves forward.
If recusal rules mean anything, they have to mean something when the justice in question is on the left side of the bench, too. Otherwise, they are not rules at all, just leverage.
