RFK Jr., a longtime anti-vaccine activist, to play a role in Trump administration and potentially influence how the FDA and CDC approach the lifesaving shots.

RFK Jr. has said Trump promised him “control of the public health agencies,” including the National Institutes of Health and the Centers for Disease Control and Prevention. He’s talked about cleaning up “corruption” at those agencies and reorienting them towards a chronic disease focus (in a page on his MAHA website that has since been scrubbed).