Image: Wikimedia Supreme Court
A St. Louis gardener's $1.25 million jury win for cancer linked to decades of Roundup exposure now hangs in the balance as the U.S. Supreme Court steps in to decide whether federal pesticide law blocks ordinary Americans from holding Bayer accountable when the EPA refuses to mandate cancer warnings.
The Court granted certiorari in Monsanto Co. v. Durnell on January 16, 2026, taking up Bayer's appeal after the Missouri Court of Appeals upheld the verdict against the company. John Durnell, diagnosed with non-Hodgkin lymphoma in 2019 after long-term use of the weedkiller, argued that Bayer (which bought Monsanto in 2018) knew or should have known of the cancer risk and failed to warn consumers. Bayer insists the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) preempts such state-law claims because the EPA has never required a cancer warning on glyphosate labels and has repeatedly found the chemical "not likely to be carcinogenic to humans."
Federal Preemption at the Core
Bayer argues that allowing state juries to impose warning requirements different from EPA-approved labels would fracture the uniform national system Congress created under FIFRA. The company points to conflicting decisions among federal circuits as justification for Supreme Court intervention. A favorable ruling would make it nearly impossible to sue pesticide manufacturers for failure-to-warn unless the EPA itself demands a label change , even when companies possess internal knowledge of risks or when new science emerges.
Plaintiffs' attorneys counter that FIFRA does not absolve companies of the duty to seek EPA approval for updated labels when evidence warrants it. Michael Baum, who has won major verdicts for Roundup victims, stated that a win for Bayer would grant "blanket immunity for over 57,000 pesticides regulated under federal law." R. Brent Wisner, representing plaintiffs, warned that the decision would elevate pesticide makers to "a special class of corporations" receiving unique protection from accountability.
Trump Administration Sides with Bayer
The Trump administration filed an amicus brief in December 2025 urging the Court to take the case, arguing that state claims would "undermine" the national regulatory framework. Solicitor General D. John Sauer emphasized EPA's consistent safety findings for glyphosate and approval of labels without cancer warnings. This marks a reversal from the prior administration's stance, which had opposed preemption in similar Roundup appeals.
MAHA advocates and critics blasted the position, arguing it prioritizes corporate protection over public health. Zen Honeycutt of Moms Across America stated that companies pushing against "nanny state" regulations should not then rely on government to shield them from lawsuits, adding that Bayer could have reformulated or labeled honestly instead of pursuing prolonged litigation.
Mounting Evidence and Industry Setbacks
Bayer would grant "blanket immunity for over 57,000 pesticides. Credit: The Discoure
Bayer has paid over $10 billion to settle earlier Roundup claims and still faces more than 60,000 pending lawsuits. The company removed glyphosate from consumer Roundup formulations but kept it in commercial versions.
Scientific consensus remains contested. The WHO's IARC classified glyphosate as "probably carcinogenic" in 2015, while the EPA maintains it poses no cancer risk when used as directed. A major 2000 review article long cited to support glyphosate safety was retracted in November 2025 over serious ethical concerns, including allegations of Monsanto employees ghostwriting portions and ignoring contrary chronic toxicity studies. The retraction has intensified scrutiny of the regulatory approval process.
Legislative Pushback and Industry Lobbying
Bayer and allies have pursued parallel protections through legislation. A provision in a 2026 appropriations bill that would have barred federal funds for state-inconsistent pesticide policies was stripped after bipartisan opposition led by Rep. Chellie Pingree. Industry groups, including Bayer's Modern Ag Alliance, have secured liability shields in states like Georgia and North Dakota, declaring EPA oversight supreme and blocking state warning claims.
Efforts continue to embed similar language in the pending Farm Bill, with House Agriculture Committee Chair Glenn Thompson naming pesticide liability protection a priority. Thompson received substantial campaign funds from crop production industries in 2024.
The Court has not set oral argument dates, with a decision expected by June 2026. A ruling for Bayer would close off one of the largest tort waves in U.S. history, shifting power firmly toward federal regulators and away from citizens injured by corporate products.
