Both Republicans and Democrats clash with RFK Jr. on vaccines, CDC turmoil

"We're denying people vaccines," Republican Sen. Bill Cassidy told Kennedy.

Last Updated: September 4, 2025, 5:08 PM EDT

Health and Human Services Secretary Robert F. Kennedy Jr. faced a grilling before the Senate Finance Committee on Thursday from both Republican and Democratic lawmakers.

Over nearly three hours of questioning, he defended his controversial views on vaccines and the ouster of Susan Monarez as director of the Centers for Disease Control and Prevention.

Sep 04, 2025, 11:20 AM EDT

GOP's Cassidy says, 'We're denying people vaccines'

Republican Sen. Bill Cassidy, a longtime physician whose vote was critical in Kennedy's ascension to HHS secretary, read out emails he received from people who say they've had difficulty accessing vaccines. Cassidy submitted the emails to the record.

"I would say, effectively, we're denying people vaccines," Cassidy said as he ended his questioning of Kennedy.

Kennedy responded, "You're wrong."

Sen. Bill Cassidy questions Health and Human Services Secretary Robert Kennedy Jr. during a Senate Finance Committee, September 4, 2025 in Washington.
Andrew Harnik/Getty Images
Sep 04, 2025, 11:19 AM EDT

Democratic senator to RFK Jr.: 'You're a charlatan'

Democratic Sen. Maria Cantwell picked up the questioning from Cassidy and continued to scrutinize Kennedy's stance and actions concerning vaccines.

The Washington senator brought up a chart showing the number of deaths following the introduction of vaccines since the 20th century.

Sen. Maria Cantwell questions Health and Human Services Secretary Robert Kennedy Jr. during a Senate Finance Committee, September 4, 2025 in Washington.
Andrew Harnik/Getty Images

"You're a charlatan. That's what you are. You're the ones who conflate chronic disease with the need for vaccines," she said.


"You are perpetrating hoaxes," Cantwell later added.

Sep 04, 2025, 11:14 AM EDT

Cassidy expresses concerns over ACIP members' conflicts of interest

Sen. Bill Cassidy, a Republican from Louisiana, whose vote was crucial in confirming Kennedy, expressed concerns over conflicts of interest among new members of the CDC's vaccine advisory committee.

In June, Kennedy removed all 17 sitting members of the Advisory Committee on Immunization Practices (ACIP) and replaced them with his own hand-picked members, many of whom have expressed vaccine-skeptic views.
"What I am concerned about is that many of those who you've nominated for ACIP have received revenue as serving as expert witnesses for plaintiffs, attorneys, suing vaccine makers," Cassidy said.

Cassidy continued, "Now, one of my colleagues in another setting alleged that you seem more interested in settlements than science. If we put people who are paying witnesses for vaccine, people suing vaccines, that actually seems like a conflict of interest real quickly. Do you agree with that?"

Kennedy disagreed saying it may be a "bias" but not a conflict of interest.

Sep 04, 2025, 11:06 AM EDT

Bennet, Kennedy spar over vaccines

Democratic Sen. Michael Bennet grilled Kennedy on his firing of all 17 members of the CDC's vaccine advisory panel, the Advisory Committee for Immunization Practices, and the panel's upcoming review of childhood vaccine schedule recommendations later this month.

The exchange turned heated as both men raised their voices.

"I'm asking the questions, Mr. Kennedy, on behalf of parents and schools and teachers all over the United States of America who deserve so much better than your leadership," Bennet yelled. "That's what this conversation is about."

"Senator, they deserve the truth, and that's what we're going to give them for the first time in the history of that agency," Kennedy responded.

Sen. Michael Bennet questions Health and Human Services Secretary Robert Kennedy Jr. during a Senate Finance Committee, September 4, 2025 in Washington.
Andrew Harnik/Getty Images

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