Sen. Bill Cassidy of Louisiana has emerged as a central figure in the confirmation of Robert F. Kennedy Jr., President Donald Trump's nominee for health and human services secretary.

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.

The GOP senator and former physician expressed misgivings about whether Trump’s controversial HHS pick could be trusted with the public’s health.

Senator Bill Cassidy, a physician and key G.O.P. vote, joined Democrats in aggressively questioning Robert F. Kennedy Jr., President Trump’s pick for health secretary. He did not say how he would vote.

Sen. Bill Cassidy, the top Republican on the Senate Committee on Health, Education, Labor and Pensions, concluded Thursday's hearing by saying he was "struggling" with the nomination due to Kennedy's vaccine positions. Kennedy notably refused to say vaccines don't cause autism as he faced pointed question from lawmakers.

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Conservatives in Louisiana view the nomination of Robert F. Kennedy Jr. as a litmus test for President Trump's agenda.

Louisiana Sen. Bill Cassidy will be at the center of the first hearing for Robert F. Kennedy Jr.’s controversial Health and Human Services Secretary nomination.

As Robert F. Kennedy Jr. faced skeptical senators Thursday in the second day of his confirmation hearing to lead the department of Health and Human Services, Sen. Bill Cassidy confronted Kennedy about vaccines.

Senate Health Committee Chairman Bill Cassidy (R-La.) said at the end of Thursday’s hearing he is “struggling” with whether to confirm Robert F. Kennedy Jr. as Health and Human Services

Robert F. Kennedy Jr., U.S. President Trump’s nominee to be secretary of Health and Human Services, testifies before a Senate Health, Education, Labor, and Pensions (HELP) Committee confirmation hearing on Capitol Hill in Washington, U.S., January 30, 2025. REUTERS/Nathan Howard