On September 11, 2026, Health Law Advocates joined the National Health Law Program, the Center for Public Representation, and 68 other organizations in filing an amicus brief challenging the Trump administration’s regulations imposing work requirements on Medicaid recipients. The amicus brief details how these regulations are attempting to use work requirements to strip Medicaid from large numbers of individuals with serious medical conditions or disabilities—even though Congress passed a law classifying such persons as “medically frail” and exempting them from Medicaid work requirements. The brief supports the plaintiff states’ motion for partial summary judgment, which argues that the administration’s regulations violate federal statute (1) by limiting Medicaid recipients’ ability to use self-attestation to show what medical conditions and disabilities they have, and (2) by rewriting Congress’s definition of “medically frail” from just a qualifying serious condition or disability, to a qualifying serious medical condition or disability that is proven to “significantly impair” one’s ability to work. Both aspects of the regulations increase paperwork burdens that will cause many to unjustly lose their Medicaid coverage. The case is Massachusetts v. Oz, No. 1:26-cv-12962-RGS, in the U.S. District Court for the District of Massachusetts.