Florida plans to stop school vaccine mandates. These states could follow.

Health Secretary Robert F. Kennedy Jr.'s federally-focused campaign against vaccines is entering a new phase with allies intent on rolling back school and health care facility mandates.

Anti-vaccines advocates are now targeting Louisiana, Texas and Idaho, where they are pushing red state governors to follow Florida’s lead in removing requirements in schools for students to get certain shots. But those advocates, emboldened by recent victories in state legislatures, face steep political obstacles within their own party that will reveal how far GOP state leaders are willing to go to support the anti-vaccine wing of the Republican party.