If Donald Trump becomes president again, it looks like Robert F. Kennedy Jr. will have his say over who gets which vaccines: Trump said at a rally last weekend that he would let RFK Jr. “go wild” on health should he win the White House. RFK Jr. said Trump promised him control of the Department of Health and Human Services, where the CDC and FDA are housed; Trump’s campaign seemed to suggest that wasn’t set in stone. A world where an anti-vax advocate would play a large role in shaping vaccine policy is kind of terrifying.