Del Bigtree steps down from MAHA Action leadership after split with Kennedy over MMR
Why it matters
Even inside the movement there is disagreement about tactics and specific vaccines, a reminder that “reform” is not monolithic, and that the MMR debate divides even its most prominent voices.
Del Bigtree, founder of the Informed Consent Action Network (ICAN), producer of “Vaxxed,” and communications director for Robert F. Kennedy Jr.’s 2024 presidential campaign, was the initial CEO of MAHA Action, a nonprofit supporting the Make America Healthy Again movement.
In 2025 Bigtree stepped down from his formal leadership role in MAHA Action following public disagreements with Kennedy over the MMR vaccine, while continuing his own advocacy through ICAN.
Bigtree remains among the speakers associated with the Foundation’s launch programming.
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