Kennedy's statements have raised concerns about his childhood vaccine commitment to Republican Senator Bill Cassidy.

Republican Senator Bill Cassidy, a doctor, said new Louisiana vaccine policy reduces immunization access for parents, patients.

After making a pledge on vaccines to Sen. Bill Cassidy during his confirmation process, HHS secretary Robert F. Kennedy Jr. has promptly reversed course. Now enthroned at the HHS, RFK Jr. has pledged to kick off an investigation into childhood vaccine schedules,