SCOTUS blocked – The U.S. Supreme Court blocked lawsuits tied to Roundup’s cancer warning claims, ruling that the product’s makers could not be sued for allegedly failing to warn the weedkiller might cause cancer. The decision landed with fresh force for Make America Healthy A
For many cancer patients and families who believed the courts could force accountability over Roundup, the Supreme Court’s decision landed like a door closing—firmly—on a key line of claims.
On June 25, the U.S. Supreme Court blocked lawsuits over the weedkiller Roundup. ruling that the makers cannot be sued for allegedly failing to warn that the product might cause cancer. The justices’ move rejected a lawsuit claiming the herbicide causes cancer. cutting off a path that many plaintiffs were counting on to turn warning labels into legal leverage.
The fallout wasn’t limited to court filings. In the Make America Healthy Again (MAHA) ecosystem, the ruling quickly became a referendum on political trust—especially for activists who supported President Donald Trump and expected the justice system to align with their health-focused concerns.
Alex Clark, a MAHA influencer, decried the June 25 decision on social media, calling it “a STUNNING betrayal.” She linked the outcome to the administration’s promise to take on “corporate capture” and “Make America Healthy Again,” saying the court’s stance amounted to a reversal.
Alexandra Muñoz, a MAHA activist, posted on Instagram that the U.S. Department of Justice’s support of the case “has betrayed the American people.” Vani Hari. a MAHA mom who blogs as “The Food Babe. ” posted on X: “I am literally sick. This is a devastating blow to every family that trusted our justice system.”.
At the center of that anger is the role of the Justice Department—because the Supreme Court’s outcome was tied to positions taken before the case reached the high court.
Biden’s solicitor general had opposed the Roundup appeal, with the court filing in 2022 asking the justices to reject Bayer’s bid to revive the lawsuit. Bayer is the company that bought out longtime Roundup-maker Monsanto.
The contrast came in 2025, when Trump’s DOJ filed an amicus brief urging the high court to take up the appeal.
Food & Water Watch attorney Dani Replogle responded to that DOJ move with a blunt warning about what it meant for cancer patients. In a statement. Replogle said: “The Trump Administration’s filing encourages the Supreme Court to slam the judiciary doors in the faces of cancer patients across the country. No political posturing can undo the clear message this brief sends to sick Americans harmed by toxic pesticides: Trump has Bayer’s back. not theirs. Monsanto/Bayer’s push to silence cancer patients and keep the sick from pursuing justice is cruel ‒ and Trump’s support is even more despicable.”.
The sequence now ends with the Supreme Court blocking the lawsuits, leaving families to grapple with a ruling that plaintiffs read as a legal signal about what claims can proceed and what cannot.
The June 25 decision also reframed a broader political expectation that MAHA members had placed in Trump—an expectation that justice would follow their beliefs about protecting public health from corporate influence. For activists who framed their movement as both pro-science and anti-capture. the result has turned into an especially bitter kind of certainty: the administration they backed sided with the company at the center of their complaint.
A 2025 New York Times profile of Hari cited her confidence that Trump would back changes to the food system. In the profile. Hari said. “We never had a president talk about these issues like this before. ” and that she believed he “fully supports changing the food system.” That earlier optimism now sits beside the Supreme Court’s ruling that blocked the warning-related cancer lawsuits.
The human reaction—online and emotional—was immediate. But beyond the anger, the case has a straightforward legal shape: the Supreme Court’s decision on Roundup turned on the question of whether the product’s makers can be sued for failing to warn about a possible cancer risk.
For cancer patients and families watching the legal system closely, the practical meaning is stark. The claim did not move forward. The court’s message, as critics of the DOJ’s position put it, was that sick Americans would be left to face higher barriers than they had expected.
Roundup SCOTUS Bayer Monsanto cancer lawsuits June 25 decision Department of Justice amicus brief MAHA Make America Healthy Again