Caroline Kennedy stepped out of the shadows and onto social media to assail her cousin, Robert F. Kennedy Jr., on the eve of his Senate hearing.

WASHINGTON (AP) — Calling Robert F. Kennedy Jr. a “predator” who is addicted to power, Caroline Kennedy urged the U.S. Senate in a Tuesday letter to reject the nomination of her cousin to be President Donald Trump’s health secretary.

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

The former U.S. ambasador — the last surviving child of Jacqueline and John F. Kennedy — urged lawmakers to reject RFK Jr.’s nomination as health secretary.

Caroline Kennedy called her cousin, Robert F. Kennedy, a 'predator' ahead of his confirmation hearing for Health and Human Services secretary.

Following Caroline Kennedy's scathing letter against cousin Robert F. Kennedy Jr. less than 24 hours before his first confirmation hearing for health and human services secretary, a Kennedy family insider says the Kennedy family is "in tatters" amid the "unprecedented" public conflict — especially considering Caroline almost never speaks publicly.

Caroline Kennedy, a former US ambassador and daughter of John F. Kennedy, claimed her cousin, Robert F. Kennedy Jr., was "unqualified" for HHS Secretary and a "predator."

Maria Shriver praised her cousin Caroline Kennedy’s “courage” in slamming their fellow relative Robert F. Kennedy Jr. as a “predator.” Caroline, the only living child of former President John F. Kennedy,

Shriver shared her support for her cousin, who called Donald Trump's nominee for secretary of Health and Human Services a "predator" in a letter to senators.

Caroline Kennedy wrote a letter against cousin Robert F. Kennedy Jr.'s health secretary nomination, alleging he used to show off "how he put baby chickens and mice in a blender to feed to his Hawks."

A longtime anti-vaxxer, Robert F. Kennedy Jr. vowed to "Make America Healthy Again" if he is confirmed as Trump's Health and Human Services Secretary.