Caroline Kennedy said in a scathing letter about her cousin, Robert F. Kennedy Jr., that she felt "an obligation to speak out."

Robert F. Kennedy Jr. faced intense scrutiny Wednesday on Capitol Hill as he sought confirmation for the role of Health and Human Services Secretary.

If approved, Kennedy will control a $1.7 trillion agency that oversees food and hospital inspections, hundreds of health clinics, vaccine recommendations and health insurance for roughly half the country.

Robert F. Kennedy Jr. was confronted with a number of his baseless claims and a vexing abortion issue. But Republican senators treaded lightly.

RFK Jr. claimed he is not “anti-vaccine” and appeared unfamiliar with key aspects of healthcare insurance programs in his confirmation hearing.

In a scathing letter Tuesday, Caroline Kennedy warned senators about her cousin, Robert F. Kennedy Jr., calling him a "predator."

Robert F. Kennedy, Jr. is currently sitting for his Senate confirmation hearing as Donald Trump's Department of Health and Human Services head.

Robert F. Kennedy Jr., a former presidential candidate and environmental activist, endorsed Donald Trump last year and threw his weight behind a campaign to “Make America Healthy Again.” For the past two decades he has been best known for airing skeptical views on vaccines.

Backed by dozens of ultra-right anti-vaccine zealots in the audience, Kennedy engaged in over three hours of lies, half-truths, and disinformation in his effort to become the top general in Trump’s war on public health.

Robert F. Kennedy Jr. has said vaccines are not safe. His support for abortion access has made conservatives uncomfortable.

Robert F. Kennedy Jr., President Donald Trump’s nominee to head the US Department of Health and Human Services, will tell a Senate Committee Wednesday that he wasn’t anti-vaccine, he was “pro-safety.”

President Donald Trump nominated Robert F. Kennedy Jr. to lead the Department of Health and Human Services on Nov.