The U.S. Health and Human Services Secretary Robert F. Kennedy Jr. delivered a ten-minute speech about health claims. Protesters outside say to fact-check.

U.S. Health Secretary Robert F. Kennedy Jr., a long-time vaccine skeptic, has been making sweeping changes to reshape vaccine, food and medicine policies.

John F. Kennedy waves to a cameraman and an estimated crowd of 2,000 enthusiastic supporters in Los Angeles, California on ...