Newly obtained documents are casting serious doubt on Health Secretary Robert F. Kennedy Jr.'s congressional testimony about a 2019 trip to Samoa. Letters revealed through a lawsuit show that Kennedy — then chair of anti-vaccine nonprofit Children's Health Defense — wrote to Samoa's prime minister explicitly requesting to study the country's MMR vaccine use following the deaths of two children who had received the vaccine. The word "vaccine" or "vaccination" appeared eight times in the letter.

During his Senate confirmation hearings, Kennedy repeatedly denied that vaccines had anything to do with the trip, telling senators he went to introduce a medical informatics system. HHS has maintained the visit "was unrelated to vaccines" and called any suggestion Kennedy misled Congress "defamatory." Notably, Kennedy was not under oath during the hearings — though knowingly giving false material testimony to Congress is still a crime regardless.

The Samoa trip remains one of the most controversial episodes of Kennedy's career. Critics argue his visit emboldened local anti-vaccine activists, contributing to dangerously low vaccination rates that preceded a measles outbreak killing 83 people, mostly children under 5.

Key Takeaways:

• Kennedy's letter to Samoa's PM proposed a "detailed health informatics assessment" of MMR vaccines
• The Samoan PM welcomed the visit, specifically referencing the vaccine assessment
• Sen. Bill Cassidy, who cast a key confirmation vote for Kennedy, has since acknowledged his trust was broken after Kennedy reversed pledged vaccine policies
• Legal experts say Congress could pursue hearings or an impeachment inquiry, though action is unlikely under the current Republican-led majority

Why it matters: These documents raise significant questions about the integrity of Kennedy's confirmation testimony and his leadership of the nation's top health agency — with direct implications for public trust in U.S. vaccine policy.