Hi, it’s Rachel in Washington. Robert F. Kennedy Jr. is now the head of the US Department of Health and Human Services, and we’re waking up to a new era. More on that in a moment, but first…

Robert F. Kennedy Jr. has spent decades of his life agitating for change at federal health agencies from the outside. He’s filed lawsuits, written books, and built a movement aimed at undermining the federal government’s messaging on public health and scientific research.