# Supreme Court shields Monsanto from Roundup cancer liability suits  
**Published:** 2026-06-25T15:15:07.000Z  
**Source:** [Nebraska Examiner](https://nebraskaexaminer.com/2026/06/25/repub/us-supreme-court-hands-win-to-monsanto-in-case-related-to-claims-roundup-causes-cancer/)  
**AI-generated:** yes (claude-haiku-4-5-20251001)  
**Canonical:** https://lincolne.news/article/supreme-court-shields-monsanto-from-roundup-cancer-liability-suits

The U.S. Supreme Court on Thursday ruled that [federal pesticide law shields Monsanto from state-level lawsuits](https://nebraskaexaminer.com/2026/06/25/repub/us-supreme-court-hands-win-to-monsanto-in-case-related-to-claims-roundup-causes-cancer/) claiming its herbicide Roundup caused cancer, overturning a $1.25 million verdict and potentially blocking tens of thousands of similar cases nationwide.

In a 7-2 decision, the court ruled that the Federal Insecticide, Fungicide, and Rodenticide Act, or FIFRA, prevents states from imposing labeling requirements that differ from those approved by the Environmental Protection Agency. The ruling effectively preempts failure-to-warn lawsuits that argue companies should have included cancer warnings on products, despite EPA determinations that no such warnings are necessary.

Justice Brett Kavanaugh, writing for the majority, stated that because the EPA approved Roundup's label without a cancer warning, federal law required Monsanto to keep using that label. "Durnell's state tort claim would require Monsanto to add a cancer warning to its labels," Kavanaugh wrote. "That Missouri-law requirement is 'in addition to' and 'different from' Monsanto's federal-law labeling obligations."

The case centered on John Durnell, a Missouri resident who claimed two decades of Roundup use caused his non-Hodgkin lymphoma. A Missouri jury awarded him $1.25 million, which a state appeals court affirmed. The Supreme Court was the first federal court to hear the case.

The decision created an unusual split, with conservative Justice Neil Gorsuch joining liberal Justice Ketanji Brown Jackson's dissent. Jackson wrote that the majority "leaves Durnell without a remedy for the significant harms he has suffered."

The ruling carries major implications for agriculture and chemical manufacturing. [Nebraska has particular significance in Roundup litigation](https://nebraskapublicmedia.org/en/news/news-articles/bayer-faces-thousands-of-roundup-cancer-lawsuits-a-supreme-court-ruling-may-make-it-harder-to-sue/), as the state was where researchers first established a link between farm chemicals and non-Hodgkin lymphoma. [Third-generation Nebraska farmer Larry Domina was among the first to file a U.S. lawsuit against Monsanto](https://www.classaction.com/news/glyphosate-cancer-lawsuit/) over the issue.

Monsanto's parent company Bayer has proposed a [$7.25 billion settlement to resolve current and future Roundup cancer claims](https://www.drugwatch.com/legal/roundup-lawsuit/), with a hearing on final approval scheduled for July 9. The Supreme Court decision may affect whether that settlement proceeds on current terms, though Monsanto said Thursday the ruling "should help significantly contain the Roundup litigation after nearly a decade of legal battles."

The decision reflects a broader debate over regulatory preemption. Monsanto argued that allowing state juries to second-guess EPA determinations would create conflicting labeling requirements across states. Durnell's attorneys countered that state tort law should supplement federal oversight when new evidence emerges, particularly given the [2015 World Health Organization finding that glyphosate is likely a human carcinogen](https://www.pbs.org/newshour/show/a-look-at-health-concerns-as-roundup-case-reaches-supreme-court), a conclusion that diverges from EPA's position.

## Sources

- [Nebraska Examiner](https://nebraskaexaminer.com/2026/06/25/repub/us-supreme-court-hands-win-to-monsanto-in-case-related-to-claims-roundup-causes-cancer/)
- [Nebraska Public Media coverage of Roundup lawsuits and Supreme Court implications](https://nebraskapublicmedia.org/en/news/news-articles/bayer-faces-thousands-of-roundup-cancer-lawsuits-a-supreme-court-ruling-may-make-it-harder-to-sue/)
- [Supreme Court opinion in Monsanto v. Durnell](https://www.supremecourt.gov/opinions/25pdf/24-1068_n7ip.pdf)

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This article was generated by AI (claude-haiku-4-5-20251001) based on source material from Nebraska Examiner, enriched with 3 web searches. The original source is available at https://nebraskaexaminer.com/2026/06/25/repub/us-supreme-court-hands-win-to-monsanto-in-case-related-to-claims-roundup-causes-cancer/.