Senator Bernie Sanders confronted anti‑vaccine activist Robert F. Kennedy Jr. during a Senate Health, Education, Labor and Pensions hearing, forcing the health secretary to defend his outright rejection of germ theory. Kennedy, who has no formal training in medicine, reiterated his belief that microbes do not cause disease, prompting immediate rebuttal from Republican Sen. Bill Cassidy in real time today.

Kennedy’s denial traces back to his 2021 book *The Real Anthony Fauci*, where he disparaged germ theory as a pharmaceutical ploy and promoted a modern version of the discredited terrain theory. That model blames dietary imbalances, toxins, and stress for illness, echoing his Make America Healthy Again platform, which pushes whole‑food diets while vilifying additives in public policy and today.

The hearing marked a rare moment when germ‑theory denial received direct, fact‑checked scrutiny on the Senate floor, reinforcing the scientific consensus that vaccines save lives. Kennedy’s MAHA agenda, which reshapes federal dietary guidance, now faces heightened political resistance, limiting its ability to influence public health policy among lawmakers who remain skeptical of his claims and who advocate evidence‑based approaches instead.