Jack Schlossberg Blasts Cousin RFK Jr.'s Wife, TV Star Cheryl Hines, Over Child's Measles Death: 'Say Sorry'

Jack Schlossberg has more strong words for one of his famous family members.

The 32-year-old grandson of John F. Kennedy took to Instagram on Thursday, March 6, to call out actress Cheryl Hines. Hines is married to Robert F. Kennedy Jr., who is Schlossberg's first cousin once removed.

“Hey Cheryl Hines, it’s Jack Schlossberg, I just got out of the shower,” the Democratic advocate said in a selfie video, where he's seen wearing a towel with wet hair. “We’ve never met, but I’ve got a favor to ask. I need you to call up the family of the child who died of measles, and say sorry. Can you do that for me, babe?”

“Almost every single case of measles is in someone who’s not vaccinated,” Schlossberg continued. “I think you’re the perfect person to say sorry.”

Related: Kennedy Family 'in Tatters' amid 'Unprecedented' Public Battle Between Cousins Caroline Kennedy and RFK Jr. (Exclusive Source)

On Feb. 26, the Texas Department of State Health Services reported the first death from an ongoing measles outbreak in the South Plains and Panhandle regions of the state. The school-aged child was not vaccinated.

Schlossberg has used his social media in recent months to repeatedly blast RFK Jr., occasionally roping in Hines for standing by her husband, who is a longtime anti-vaccine activist.

Hines' rep has yet to respond to PEOPLE's request for comment.

Related: Cheryl Hines Is 'Making the Best' of RFK Jr.'s New MAGA Life Despite Deeper Marriage Concerns: Source (Exclusive)

RFK Jr. is Donald Trump’s newly confirmed Secretary of Health and Human Services. During Trump’s first Cabinet meeting on Feb. 26, the president called on Kennedy to answer a reporter’s question about the outbreak in Texas. Kennedy shrugged it off, saying that measles outbreaks are “not unusual” and happen in the U.S. “every year” — which was immediately contradicted by doctors.

He later backtracked in an essay published to Fox News on March 2, writing, "As the Secretary of the U.S. Department of Health and Human Services, I am deeply concerned about the recent measles outbreak."

Related: Jack Schlossberg Finally Explains His Controversial Social Media Posts — and Why He Loves to Lie About His Life

However, while sharing the steps he was taking to help Texas handle the outbreak and reiterating how seriously he was taking the outbreak, Kennedy maintained, “The decision to vaccinate is a personal one.”

“As healthcare providers, community leaders, and policymakers, we have a shared responsibility to protect public health. This includes ensuring that accurate information about vaccine safety and efficacy is disseminated,” he continued, while also encouraging parents to explore "therapeutic medications."

Related: FDA Abruptly Halts Progress on Next Season's Flu Shots 

While Hines has yet to publicly address her husband's management of the measles outbreak, she has previously shared some of her thoughts on vaccines.

During Kennedy's 2024 presidential campaign, she admitted to receiving the COVID-19 vaccine in order to continue filming Curb Your Enthusiasm during the pandemic.

“I did what I needed to do to work,” she said in an interview with The Hollywood Reporter. “If I wasn’t working, would things be different? Maybe. I’m not the kind of person that gets the flu shot.”

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In the same interview, the 59-year-old actress addressed some of her husband’s “radical” opinions.

“When people say he’s a conspiracy theorist, I really don’t know what to make of that,” Hines admitted. “At the same time, I often think about what his life has been like — to watch his uncle be assassinated and then watch his father be assassinated. I do find it mysterious and odd and all of it to be larger-than-life."

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