Robert F. Kennedy Jr., who's nominated to become the next health secretary, asked the federal government to revoke its authorization of all COVID-19 vaccines in May 2021, just as vaccinated Americans began returning to a sense of normalcy after pandemic lockdowns.

Robert F. Kennedy Jr. petitioned the FDA to revoke its authorization for the Covid-19 vaccine just six months after it was made available.

Robert F. Kennedy Jr. petitioned the F.D.A. to revoke authorization of the shots at a time when they were in high demand and considered life-saving.