‘He lied to you’: Jake Tapper confronts GOP senator over RFK Jr breaking vaccine promise

CNN host Jake Tapper pressed Bill Cassidy, who had cast the decisive vote to confirm RFK Jr as HHS secretary, over Kennedy's vaccine stance
UPDATED NOV 23, 2025
Jake Tapper confronted Republican Senator Bill Cassidy about his vote to confirm Robert F Kennedy Jr as the HHS secretary after Kennedy allegedly ordered the CDC to change its guidance on autism (Getty Images)
Jake Tapper confronted Republican Senator Bill Cassidy about his vote to confirm Robert F Kennedy Jr as the HHS secretary after Kennedy allegedly ordered the CDC to change its guidance on autism (Getty Images)


WASHINGTON, DC: CNN anchor Jake Tapper engaged in a tense showdown with Republican Senator Bill Cassidy on Sunday, November 23, accusing the lawmaker of being misled by Robert F Kennedy Jr regarding his stance on vaccines.

In a heated interview on 'State of the Union', Tapper confronted Cassidy, a licensed physician who cast the decisive vote to confirm Kennedy as HHS secretary, about Kennedy’s recent directive to the CDC to remove language stating there is "no link" between vaccines and autism.

Jake Tapper accuses Robert F Kennedy Jr of misleading comments

NEW YORK, NEW YORK - MAY 15: Jake Tapper of CNN’s The Lead with Jake Tapper and CNN’s State of the Union with Jake Tapper speaks onstage during the WarnerMedia Upfront 2019 show at The Theater at Madison Square Garden on May 15, 2019 in New York City. 602140 (Photo by Kevin Mazur/Getty Images for WarnerMedia)
Jake Tapper of CNN’s 'The Lead with Jake Tapper' and CNN’s 'State of the Union with Jake Tapper' speaks onstage during the WarnerMedia Upfront 2019 show at The Theater at Madison Square Garden on May 15, 2019, in New York City (Kevin Mazur/Getty Images for WarnerMedia)

Tapper played a clip from Kennedy's confirmation hearing in February, where Cassidy had explicitly asked if Kennedy would accept data showing vaccines do not cause autism.

In the clip, Kennedy replied, "Not only will I do that, but I will apologize for any statements that misled people otherwise."

"Dr Cassidy, he lied to you!" Tapper exclaimed after the clip ended, pointing out that Kennedy had done the exact opposite by altering the CDC's guidance this week.

WASHINGTON, DC - JUNE 24: Health and Human Services (HHS) Secretary Robert F. Kennedy Jr. testifies before the House Energy and Commerce Committee Health Subcommittee in the Rayburn House Office Building on June 24, 2025 in Washington, DC. The committee met to hear testimony on the FY2026 Department of Health and Human Services budget. (Photo by Kayla Bartkowski/Getty Images)
Health and Human Services (HHS) Secretary Robert F Kennedy Jr testifies before the House Energy and Commerce Committee Health Subcommittee in the Rayburn House Office Building on June 24, 2025, in Washington, DC (Kayla Bartkowski/Getty Images)

Cassidy, however, refused to take the bait to attack Kennedy personally. Instead, he pivoted to a public health message.

"Let me say what is most important to the American people, speaking as a physician, vaccines are safe," Cassidy said. "It’s actually quite well proven that vaccines are not associated with autism. There’s a fringe out there that thinks so, but they’re quite a fringe."

Bill Cassidy refuses to engage in 'tit-for-tat' 

WASHINGTON, DC - FEBRUARY 12: Senator Bill Cassidy (R-LA) talks to reporters in the Senate subway on
Sen Bill Cassidy accused Jake Tapper of trying to make 'Republicans fight each other' and refused to criticize RFK Jr by name (Getty Images)

Tapper continued to press, asking if Cassidy regretted his vote and cited a recent essay by Kennedy’s own cousin, Tatiana Schlossberg, who slammed the HHS Secretary for "causing real damage."

"You don’t seem willing to criticize him by name at all, unlike members of his family," Tapper challenged.

Cassidy pushed back, accusing the host of seeking "titillation" rather than substance.



"So, Jake, clearly, this conversation, you want me to be on the record saying something negative," Cassidy shot back. "And, of course, it makes news if Republicans fight each other. I get that... But I don't think the tit-for-tat is what people are about."

The senator insisted that his focus remains on legislation to lower healthcare costs and ensuring patients have power over insurance companies.

CDC website change sparks alarm 

BERLIN, GERMANY - AUGUST 29: Robert F. Kennedy Jr., nephew of former U.S. President John F. Kennedy,
Robert F Kennedy Jr has faced intense scrutiny after ordering the CDC to alter its long-standing guidance on vaccines and autism (Getty Images)

The confrontation comes after the CDC website was updated to state that "scientific studies have not ruled out the possibility that infant vaccines contribute to the development of autism," a direct reversal of the agency's previous stance.

Cassidy acknowledged the change was "important," but maintained that "President Trump agrees that vaccines are safe."

"If you don’t take them, you’re putting your child or yourself in greater danger," Cassidy warned, citing recent measles deaths in Texas as a grim consequence of vaccine hesitancy.

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