The U.S. Supreme Court is set to review a key aspect of the Affordable Care Act (ACA), specifically the requirement that insurers cover preventive care services without cost-sharing. The lawsuit, initiated by conservative employers in Texas, challenges the expert panel that advises the Department of Health and Human Services (HHS) on which preventive services must be included. This panel, established under the ACA, determines which preventive care services are deemed essential and must be covered by insurers without copayments or deductibles. The case has significant implications for healthcare policy and the potential future of the ACA.