Sen. Bernie Sanders, the ranking member on the Health, Education, Labor, and Pensions Committee, is demanding that Senate Health Committee Chairman Bill Cassidy hold a hearing to debunk claims by Health and Human Services Secretary Robert F. Kennedy Jr. that there is a link between vaccines and autism. This has been supported by both Cassidy and Kennedy, who have undermined public faith in vaccines and raised questions about their connection to autism. Kennedy also directed the Centers for Disease Control and Prevention to change a webpage stating that vaccines do not cause autism to suggest that health authorities had ignored potential links between the shots and autism, which has been refuted by both doctors and experts.