Robert F. Kennedy Jr.'s nomination as Secretary of HHS faces intense scrutiny as he defends his controversial vaccine views during Senate hearings. Sen. Bill Cassidy challenged Kennedy on his vaccine skepticism, raising concerns over his qualifications and how his support for scientific consensus could impact public health. Cassidy's frustrations grew as Kennedy dismissed established science linking vaccines to autism. Despite some Republican support, including Sen. Rand Paul, Cassidy's potential 'no' vote adds uncertainty to Kennedy's confirmation prospects. As Democrats exert pressure, the upcoming finance committee vote could determine the path for Kennedy's leadership over HHS, overseeing crucial public health matters.