15 States Sue Over Vaccine Rollback

Fifteen Democratic-led states have launched a coordinated legal assault against the Trump administration’s effort to align America’s childhood vaccine schedule with international standards, exposing yet another partisan attempt to undermine federal authority and parental choice.

Story Snapshot

California Attorney General Rob Bonta leads 15 states in lawsuit against HHS Secretary Robert F. Kennedy Jr. over revised childhood vaccine recommendations
HHS reduced universal vaccine recommendations from 17-18 to 11, aligning with countries like Denmark while maintaining coverage for high-risk children
Democratic governors, including California’s Gavin Newsom, claim the science-based reforms endanger children despite matching peer nations’ protocols
Trump administration defends changes as enhancing transparency and parental informed consent after exhaustive review

Blue States Challenge Federal Health Authority

California Attorney General Rob Bonta and Arizona Attorney General Kris Mayes filed suit on February 24, 2026, against the Department of Health and Human Services, Secretary Robert F. Kennedy Jr., and the Centers for Disease Control and Prevention. The lawsuit targets a January 2026 HHS memorandum that streamlined childhood vaccine recommendations, removing universal requirements for rotavirus, influenza, COVID-19, hepatitis A and B, meningococcal disease, and respiratory syncytial virus. These vaccines remain recommended for high-risk children, mirroring protocols used successfully in Denmark and other developed nations with strong health outcomes.

Federal Reforms Align with International Standards

HHS Deputy Secretary Jim O’Neill signed the memorandum after what the administration described as an exhaustive review of childhood vaccination protocols. The changes reduce the recommended schedule from 17-18 vaccines to 11 core immunizations, a move Kennedy defended as protecting children while respecting family autonomy. The administration notes that Denmark and other peer nations maintain excellent public health outcomes with similar streamlined schedules, undermining claims that the reforms represent dangerous deviation from established science.

Newsom Leads Political Counterattack

Governor Gavin Newsom condemned the federal changes as “reckless” and ideologically driven on January 5, 2026, positioning California as the vanguard of resistance. Pennsylvania Governor Josh Shapiro joined the chorus, attacking what he termed “conspiracy theorists” in federal health policy. The lawsuit argues HHS unlawfully bypassed the Advisory Committee on Immunization Practices, seeking to force reinstatement of the previous bloated schedule. Yet the administration’s legal authority to set these recommendations remains clear, prompting HHS spokesperson Emily Hilliard to dismiss the suit as a “publicity stunt” designed to score political points rather than protect children.

Parental Rights Versus Government Mandates

The clash reflects deeper tensions over whether Washington bureaucrats or parents should make health decisions for American families. California previously enacted AB 144 in September 2025, explicitly authorizing state guidance independent of federal recommendations whenever officials deem them “politicized.” Newsom has built an alternative health infrastructure through initiatives like PHNIX and the West Coast Health Alliance, positioning himself as a 2028 presidential contender fighting Trump-era reforms. The California Medical Association separately sued HHS over COVID-19 vaccine rollbacks for healthy children, demonstrating coordinated resistance from the medical establishment that benefited from expanded vaccine schedules and pharmaceutical partnerships throughout the pandemic era.

Newsom says he'll lead lawsuit against RFK Jr. over children's vaccines https://t.co/5PNAeF06ag pic.twitter.com/DLPfL5dyZ1

— New York Post (@nypost) February 25, 2026

The lawsuit remains pending without court rulings as of late February 2026. HHS maintains its statutory authority over vaccination schedules stands on solid legal ground, while Democratic attorneys general claim decades of evidence support their position. What’s clear is that the Trump administration’s effort to enhance parental informed consent and align with successful international models has triggered predictable opposition from those who prioritize government control over individual liberty. The outcome will determine whether states can weaponize lawsuits to override federal health policy reforms that empower families rather than bureaucrats.