President Donald Trump has long been a critic of childhood vaccines – but then he suddenly changed course, urging parents to vaccinate their children.

Trump, Measles, and a Study That Fueled Fear

Producers: Bonnie Bertram and Erik German
Measles cases in the U.S. are at a record high since the disease was declared eradicated in 2000. President Donald Trump has long been a critic of childhood vaccines, but recently urged parents to vaccinate their children. A flawed medical study is one factor fueling vaccination resistance, and the man behind the study has a surprising connection to the president.
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