Last mentioned: Feb 25, 2026
Injunction Hearing
Expected timeframe for the court to hear arguments on a preliminary injunction to stay the policy.
Policy Rollback
The Trump administration announces significant changes to the recommended U.S. childhood vaccine schedule.
Lawsuit Filed
15 states file a joint lawsuit in federal court to block the HHS policy changes.
California and 14 other states have filed a major lawsuit against the Trump administration, challenging recent federal changes to the national childhood vaccine schedule. The legal action alleges that the administration's revisions bypass scientific consensus and violate established administrative procedures.
A coalition of 15 Democratic-led states has filed a lawsuit against the Trump administration, challenging a controversial rollback of the recommended childhood vaccine schedule. The plaintiffs argue the policy shift ignores scientific consensus, violates administrative procedures, and poses a significant risk to public health.