The Supreme Court has declined to hear a lawsuit brought by Health Secretary Robert F. Kennedy Jr.’s anti-vaccine group that claimed Meta had illegally censored the organization’s social media posts.

Children's Health Defense argues its First Amendment rights were violated when Facebook restricted its anti-vaccine posts.

The justices ruled that a key preventive health task force has authority because it is appointed by the Health and Human Services secretary. Some experts worry that RFK Jr. could politicize it.