HHS Secretary Robert F. Kennedy Jr. completed his tour of House and Senate committees this week, ostensibly to promote President Donald Trump’s budget proposal for his department but also to answer for some of his more controversial positions, particularly on vaccines. Meanwhile, Trump signed an order to facilitate the use of hallucinogens to treat mental health conditions. Victoria Knight of Bloomberg Government, Alice Miranda Ollstein of Politico, and Sheryl Gay Stolberg of The New York Times join KFF Health News’ Julie Rovner to discuss these stories and more. Also this week, as part of our “How Would You Fix It?” series, Rovner interviews Harvard public health professor David Blumenthal.