For years, Robert F. Kennedy Jr.bigwin88, has leveraged his famous name, his celebrity connections and his nonprofit, Children’s Health Defense, to spread misinformation about vaccines and call their safety and efficacy into question. Soon, he might

“Make America healthy again!” Robert F. Kennedy Jr. looked out into the crowd in Glendale, Ariz., on Saturday at his first major campaign event for his onetime rival, former President Donald J. Trump, and talked up their future together — one he hop