Cassidy’s public struggle over Trump's pick for health secretary was the latest chapter in a difficult relationship with his party's leader, and he faces a GOP primary race next year.

After Louisiana U.S. Sen. and doctor Bill Cassidy put aside his doubts over vaccine skeptic Robert F. Kennedy Jr.'s fitness to oversee our nation's health care, columnists Quin Hillyer and Stephanie Grace discuss whether his decision digs him out of a political ditch.

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

Republican Louisiana Senator Bill Cassidy cast the swing vote on advancing President Trump's nomination of RFK Jr. to lead the Department of Health.

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

While many of President Trump's Cabinet picks sparked strong public reactions, the singular appeal — and alarm — generated by Kennedy deluged the Senate with outside pressure.

RFK Jr. will run the federal agency responsible for drug approvals, Medicare and Medicaid, vaccination guidance, public-health emergencies, and pandemic preparedness.

RFK Jr. has gained a following for his questioning of vaccines. He has vowed to take on the food and drug industries and focus on chronic health conditions.

Robert F. Kennedy Jr. has been sworn in as President Donald Trump’s health secretary. The Senate on Thursday confirmed him, voting 52 to 48.

RFK Jr.'s confirmation comes after months of controversy and debate, largely focused on his past comments casting doubt on the safety of vaccines.