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  • What We Know about Trump’s $500 ACA Checks and the User Fees Funding Them

    Issue Brief

    This analysis examines the $500 checks that the Trump administration is sending to some Affordable Care Act Marketplace enrollees and the user fees that are paying for them. The checks are going to about 1 million enrollees in the 30 states that rely on the federal HealthCare.gov Marketplace who are not receiving any tax credits this year – a small share of the 19.2 million people who were enrolled nationally as of February.

  • Midterm Election Update: Medicaid Changes

    Fact Sheet

    Major federal changes to Medicaid eligibility and financing from the 2025 reconciliation law are coming, including new work requirements that will affect millions of Medicaid enrollees. KFF’s fact sheet provides an overview of what has changed, what is still ahead, and what the public thinks about Medicaid heading into the midterms.

  • Individual Market Enrollment Continues to Fall Through Mid-2026

    Issue Brief

    Enrollment in the individual health insurance market fell by 18%—over 4.6 million people—from 25.2 million in June 2025 to 20.5 million in June 2026. Falling individual market enrollment suggests further decline in ACA Marketplace enrollment this year, since Marketplace enrollees represent the vast majority of individual market coverage.

  • How Does ACA Marketplace Enrollment in 2026 Vary Across Congressional Districts?

    Issue Brief

    KFF’s new interactive maps illustrate ACA Marketplace enrollment and changes in enrollment by congressional district and state. Marketplace enrollment declined in most congressional districts between 2025 and 2026, with two-thirds of the decline (67%) occurring in Republican-held congressional districts.

  • Midterm Election Update: The Affordable Care Act Marketplaces

    Fact Sheet

    More people than ever got coverage through the Affordable Care Act (ACA) Marketplaces in 2025, but the expiration of enhanced premium tax credits has driven up what people pay and contributed to declining enrollment in 2026. Law and regulatory changes also tightened ACA eligibility and enrollment requirements. Public opinion of the ACA remains generally favorable, although views remain divided along partisan lines.

  • Rural and Urban Health Center Patients and Financing

    Issue Brief

    This brief reports on rural and urban health center patients and financing in 2025 using national data from the Uniform Data System (UDS) and examines potential impacts of recent federal policy changes.

  • Prior Authorization Metrics Provide New Insights into Insurer Practices, but Gaps Remain

    Issue Brief

    This analysis of available 2025 prior authorization data finds insurers denied at least 1 in 8 standard requests for prior authorization across three insurance markets: Medicare Advantage, Medicaid managed care, and the federally facilitated ACA Marketplaces. Denial rates varied wide segments by insurer. The analysis highlights limitations of the data and challenges for consumers interpreting it.

  • Doing More and Defying Labels in New Mexico

    From Drew Altman

    In a new column, Dr. Drew Altman, KFF's Founding President and CEO, discusses how New Mexico made childcare universal and became the only state to fully replace lost enhanced ACA tax credits while its leaders avoided polarizing labels like “progressive or “socialist.”