Health Secretary Robert F. Kennedy Jr.’s relentless anti-vaccine agenda is getting reined in as Republicans warn that further attacks on lifesaving vaccines could harm the party during the midterms, according to a report by The Washington Post.

The Post reported Wednesday that Kennedy’s hand-selected committee of vaccine advisors—who share his anti-vaccine views—have abruptly abandoned plans to attack mRNA vaccines in an upcoming meeting.

The Advisory Committee on Immunization Practices (ACIP) for the Centers for Disease Control and Prevention is scheduled to meet March 18–19. While no agenda has been published for the meeting, a Federal Register notice stated that the meeting would include discussion of “COVID-19 vaccine injuries,” and may include a vote to change the CDC’s vaccine recommendations. Sources close to the committee told the Post that Kennedy’s advisors have been looking for ways to remove mRNA COVID-19 vaccines entirely from federal recommendations. And according to clearly stated goals in a meeting of Kennedy’s anti-vaccine allies earlier this week, the long-term goal is to eliminate all childhood vaccine recommendations and remove the shots from the market.