The Advisory Committee on Immunization Practices (ACIP) has been embroiled in upheaval after a federal judge issued a temporary injunction questioning the appointment process of newly installed members. A prominent ACIP member briefly claimed the committee had been disbanded—then retracted the statement—intensifying public confusion. The dispute traces to Secretary Robert F. Kennedy Jr.’s replacement of ACIP membership and a lawsuit by the American Academy of Pediatrics that argued appointments and procedures were improperly handled. The judge’s injunction has stalled recent votes and raised questions about the committee’s ability to issue evidence‑based vaccine guidance. The episode has immediate implications for CDC vaccine policy, public trust in advisory processes, and broader debates over governance of medical advisory bodies.