Robert F. Kennedy Jr. faced a second day of Senate confirmation hearings for health secretary on Thursday, refusing to disavow the debunked link between vaccines and autism. Kennedy also gave incorrect information about Medicare and Medicaid and refused to acknowledge COVID-19 vaccines are lifesaving. He’s questioned here by Vermont Senator Bernie Sanders.

Sen. Bernie Sanders: “Was the vaccine, COVID vaccine, successful in saving millions of lives?”

Robert F. Kennedy Jr.: “I — I don’t know. We don’t have a good surveillance system, unfortunately.”

Sen. Bernie Sanders: “We don’t know?”

Robert F. Kennedy Jr.: “I don’t think anybody can say that.”