Nicholas Florko: “Bill Cassidy did not want to talk about Robert F. Kennedy Jr. Last month, as we shuffled through the U.S. Senate subway, a subterranean corridor connecting lawmakers’ offices to the Capitol, the senator from Louisiana was fielding rapid-fire questions from reporters about two of his favorite topics: drug pricing and college sports. But I asked him about his least favorite: Did he regret confirming Kennedy as health secretary?”“I was eager to know because, in spite of that decision, Cassidy may be looking at the end of his political career. This weekend, after 11 years in the Senate, he is headed into a Republican primary election with polls trending out of his favor. His vote last year to hand the keys of America’s immunization policy to one of America’s most prominent vaccine skeptics now hangs over him as a political move that may not have been enough to save his life in politics.”