U.S. Supreme Court, June 2026, 7 to 2: federal pesticide law blocks state lawsuits claiming Monsanto should have put a cancer warning on Roundup. The ruling is about preemption; it did not decide whether glyphosate causes cancer.
Held: FIFRA expressly preempts Durnell's state-law failure-to-warn claim because the claim would require Monsanto to add a cancer warning to Roundup's label.
Syllabus, PDF p. 1
U.S. Supreme Court, June 2026, 7 to 2: federal pesticide law blocks state lawsuits claiming Monsanto should have put a cancer warning on Roundup. The ruling is about preemption; it did not decide whether glyphosate causes cancer.