At the Children's Health Defense conference in Austin, Texas, in November, the crowd heard how their movement took views from the fringes to the mainstream. Anti-vaccination co-founder Robert F. Kennedy Jr. now heads the US Department of Health and Human Services. In the US, vaccine skeptics hold influential positions in health agencies and shape vaccination policy and public health communication. Rhetoric that was once fringe is now promoted by those at the center of power. The author signed up to attend the "Moment of Truth" conference online to learn more about the polarization in US health care. Children's Health Defense was co-founded by R. F. Kennedy Jr. in 2016 and he served as its nonprofit chairman.