Newly obtained documents reveal that Robert F. Kennedy Jr. specifically told the Samoan prime minister the trip was to study the MMR vaccine.

Robert F. Kennedy Jr. claimed the U.S. is doing “a better job than any country in the world” at curbing measles.

A 2019 trip to Samoa has been linked to a measles outbreak that killed dozens of people.

Letters show Kennedy wanted to study Samoa's use of MMR vaccine