Robert F. Kennedy Jr.'s nomination for HHS secretary may be in jeopardy after Sen. Bill Cassidy, MD (R-La.), said he was "struggling" with Kennedy's decades-long history of anti-vaccine advocacy during a confirmation hearing on Thursday.

If you come out unequivocally — ‘vaccines are safe, it does not cause autism’ that would have an incredible impact,” Sen. Bill Cassidy (R-La.) told the HHS nominee.

During Wednesday's U.S. Senate committee hearing regarding the nomination of Robert F. Kennedy Jr. for HHS secretary, Sens. Maggie Hassan and Bernie Sanders each asked Kennedy about his stance on abortion.

The New Hampshire senator's son, who lives with severe cerebral palsy, inspired her viral moment in Thursday's hearing for President Trump's nominee for health secretary.

Robert F. Kennedy, Jr, faced another day of tough questioning today in the second of his two confirmation hearings for his nomination to be Secretary of the Department of Health and Human Services (HHS), declining to distance himself from previous statements he has made linking childhood vaccines to autism.

Senator Maggie Hassan fiercely criticized RFK Jr., calling him a “dangerous rubber stamp” for Trump. She slammed his past anti-vaccine rhetoric, questioned his stance on reproductive rights, and accused him of abandoning lifelong values for power,

Senator Maggie Hassan, while questioning President Trump’s nominee to lead the Department of Health and Human Services, disclosed that she is the mother of a 36-year-old man with cerebral palsy.

For Sen. Maggie Hassan, the falsehoods that have been spread about any link between vaccines and autism are beyond the pale—and hit close to home. The Democratic senator from New Hampshire on Thursday confronted one of the most influential disseminators of this conspiracy theory,

told Politico that she expected Kennedy to undertake a "penetrating" review of that schedule if he's confirmed as HHS secretary, and insisted that his longtime skepticism of vaccines has not changed. Sen. Maggie Hassan, D-N.H., brought the room to silence ...

The New Hampshire Democrat described raising a son with severe cerebral palsy and ripped Kennedy for "relitigating" settled science on autism.

RFK Jr.'s confirmation hearings continue today as he appears before a second Senate committee. Follow STAT's live updates.

RFK Jr. is back on the Hill for a second day of testimony, this time before a different Senate committee, after a first round that was contentious but saw no GOP defections.