Kyra Kennedy, 29, is the youngest daughter of health secretary nominee Robert F. Kennedy Jr.

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Related: Caroline Kennedy Issues Chilling Warning About RFK Jr.'s Appointment. Up until he was named as Trump's pick to lead the Department of Health and Human Services Department

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.

Kathleen "Kick" Kennedy is the eldest daughter of Robert F. Kennedy Jr., who could be confirmed as health secretary in Trump's administration.

The health committee chairman, Sen. Bill Cassidy, R-La., also has expressed concerns about Kennedy's anti-vaccine work. A physician, Cassidy said earlier this month he “had a frank conversation” and “spoke about vaccines at length” with Kennedy. On Tuesday, Cassidy told reporters that he is still unsure if he is backing Trump’s nominee.

Like Trump, Kennedy for years has wielded a firehose of falsehoods across multiple fronts and has engaged in assorted misconduct and odd behavior, so much so that the individual lies and misdeeds zip by and blur into a mess that becomes tough for the media to thoroughly depict and hard for the public to absorb.