Robert F. Kennedy Jr.'s record of questioning childhood vaccine safety came under fire from a key Republican at the Trump HHS pick's confirmation hearing.

RFK Jr.’s long record of questioning the safety of childhood vaccinations persisted as a flash point for him during a confirmation hearing where a key Republican quickly raised concerns about his views.

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

Robert F. Kennedy Jr. will face the Senate for two days of confirmation hearings in a bid become the leader of Health and Human Services.

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.

Robert F. Kennedy Jr. responded to tough questioning during his Senate confirmation hearings, defending his stance on public trust in health agencies, abortion, and vaccines. Despite criticisms over his past anti-vaccine activism,

Robert F. Kennedy Jr. faced intense scrutiny about previous statements at his first confirmation hearing for DHHS secretary.

During confirmation hearings, Robert F. Kennedy Jr. spoke to SNAP and his ideas for integrating nutritional health into federal assistance programs.

Kennedy's misstatements about the program were peppered in between suggestions that he would seek to push privatization of the programs.

Kennedy made inaccurate claims about Medicare and Medicaid during his confirmation hearing.