Twenty-five Democrat-led states and the District of Columbia are suing to stop a Trump administration rule that requires proof, not just a self-declared diagnosis, before able-bodied Medicaid recipients can dodge new work requirements.
The lawsuit, filed June 29 in U.S. District Court for the District of Massachusetts, targets an interim final rule the Centers for Medicare and Medicaid Services issued June 3 tightening who qualifies as "medically frail" under the Medicaid work requirements passed in last year's reconciliation law. Twenty-four Democratic attorneys general joined the suit alongside two sitting governors, Josh Shapiro of Pennsylvania and Andy Beshear of Kentucky, according to Stateline and The Hill.
The 2025 law requires adults in the Affordable Care Act expansion group across 44 states to log 80 hours a month of work, job training or community engagement starting January 1, 2027, or lose Medicaid coverage. Congress carved out an exemption for the medically frail. CMS's new rule spells out what that actually means.
Under the interim rule, medically frail still covers five categories: people who are blind or disabled, those with a physical, intellectual or developmental disability limiting daily activities, people with a substance use disorder, a disabling mental disorder, or a serious or complex medical condition, according to KFF's summary of the rule. The change is in the proof. CMS now requires that a qualifying condition actually impair a person's ability to meet the 80 hour community engagement requirement, not simply that a diagnosis exists on paper. Republican lawmakers and administration officials have described the shift as a way to combat waste, fraud and abuse in a program whose improper payment rate has drawn repeated scrutiny from CMS's own auditors and outside groups like the Paragon Institute.
That is the loophole the states are suing to preserve. For years, an applicant could claim the medically frail exemption by checking a box, no functional impairment required. CMS's rule asks a simple question: does the condition actually stop this person from working. States that built exemption pipelines around self-attestation now have to verify claims against real facts.
The states' argument and what happens next
The plaintiff states, led by attorneys general in states including California, Massachusetts, Arizona, Minnesota and Washington, argue CMS blew past Congress's intent by narrowing a protection lawmakers wrote into the statute, and that the agency issued the rule as an interim final rule, skipping the standard notice and comment process. Massachusetts Attorney General Andrea Campbell and California Attorney General Rob Bonta both filed formal complaints framing the rule as an unlawful implementation of the exemption. The states say the practical effect will be people who are already working or already entitled to an exclusion getting cut off anyway, caught in paperwork rather than exempted on medical grounds.
The Urban Institute has projected that Medicaid work requirements broadly could cost between 3 million and 7 million people their coverage nationally, a figure worth noting comes from an outside research group, not CMS or the Congressional Budget Office, and one Republicans dispute as inflated. The administration's position is narrower and more concrete: the medically frail carve out should mean what it says, medically frail, not administratively convenient.
States must start sending work requirement notices to Medicaid enrollees by August 31, with the requirements themselves kicking in January 1, 2027. That timeline does not change while the lawsuit proceeds unless a judge in Massachusetts issues an injunction. Pennsylvania, New Jersey and Delaware are among the states that joined the suit specifically over how the frailty determination will be verified in practice, according to WHYY.
This is the second major coalition suit this year targeting a Trump administration anti-fraud rule in a safety net program, following a similar fight over SNAP fraud verification data. The pattern is the same each time. The administration tightens documentation to close a gap auditors have flagged for years, and a bloc of blue state attorneys general sues to keep the old, looser standard in place. The Massachusetts court will decide whether CMS can require proof before granting the exemption, or whether states can keep waving people through on a diagnosis alone. Either way, the January 2027 deadline is coming, and every state on both sides of this lawsuit will have to be ready for it.
Also read: Walz-Linked Board Pardons Illegal Alien Convicted of Raping 10-Year-Old • McConnell was found unconscious and given CPR before June hospitalization • Judge blocks Virginia law that would have jailed masked ICE agents
