Kennedy, linked to the anti-vaccine movement through his organization Children's Health Defense, insists he supports more rigorous studies rather than opposing vaccinations outright. His views have put him at odds with many, including his own cousin, Caroline Kennedy, who urged senators to reject him. In a politically charged environment, Kennedy's past as a presidential candidate and debates on reproductive rights also paint a complex picture as he seeks to impact American health policy.

As the Senate continues to finalize Trump's cabinet, eyes remain on Kennedy's next steps and how he will navigate the challenges ahead in one of the nation's most scrutinized roles.