Trump's FDA nominee, Heidi Overton, MD, PhD, faced tough questions at her Senate HELP Committee hearing, where she affirmed that every FDA-approved vaccine — including the MMR shot — is "safe and effective." But she declined to explicitly call out President Trump's false suggestion that the MMR vaccine could be "quite lethal," leaving committee chair Sen. Bill Cassidy, MD, visibly unsatisfied. Cassidy, who previously extracted promises from Health Secretary RFK Jr. that were later broken, pressed Overton on whether she'd stand up to the president on science — she pledged to "follow statutory requirements" and offer her best advice.

Overton also sidestepped her past criticism of the abortion pill mifepristone, saying it "has met the safety and efficacy determinations of the FDA" while declining to prejudge an ongoing FDA safety review she'd inherit if confirmed. Her views on abortion access could cost her votes from moderate Republicans Susan Collins and Lisa Murkowski.

Key Takeaways:

• Overton affirmed MMR vaccine safety but wouldn't directly contradict Trump's false claims
• She distanced herself from prior written criticism of mifepristone access, citing the FDA's existing safety determinations
• The FDA has lost ~20% of its workforce since Trump took office, and Overton has no prior experience running a large bureaucracy

Why it matters: The FDA commissioner shapes drug approvals, vaccine policy, and food safety for millions of Americans. With the agency already destabilized by staff losses and political pressure, who leads it — and how independently — has enormous public health consequences.