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Affordable Care Act

The ACA MarketplaceS

Tracking Insurer Changes in the ACA Marketplaces in 2027

As of June 22, six carriers have announced that they will exit the Marketplaces in plan year 2027, either in some or all states that they are currently offering plans; four carriers have announced they will enter new Marketplaces.

An image of text is an excerpt from Cynthia Cox's quick take which reads, "While the Trump administration attributes this drop in enrollment to their attempts to address fraud, this coverage loss happened at the same time millions of people faced steep increases in their premium payments — often in the double or even triple digits — with the expiration of enhanced tax credits."

ACA Marketplace Enrollment Is Down By 3 Million After Big Jump in Premium Payments

Enrollment dropped 13% following the expiration of enhanced premium tax credits at the beginning of this year. Enrollment fell from a high of 22.1 million people in 2025 to 19.2 million people in February 2026. While the Trump administration attributes this drop in enrollment to their attempts to address fraud, this coverage loss happened at the same time millions of people faced steep increases in their premium payments – often in the double or even triple digits – with the expiration of enhanced tax credits.

POLLING on the ACA

Tracking the Public’s Views on the ACA

While overall opinion of the Affordable Care Act has been more favorable than unfavorable since 2017, there remain deep partisan divides. See how public opinion on the ACA has changed from the inception of the law to the present. This interactive tool highlights key moments when views shifted and trends based on party identification, income, age, gender, and race/ethnicity.

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  • California’s Uninsured on the Eve of ACA Open Enrollment

    Report

    This report presents the findings of a baseline survey of California’s uninsured adult population just before the start of the first open enrollment period under the Affordable Care Act (ACA). It will be followed by three other surveys over the course of the next two years that will capture the changing experiences and attitudes of this same group of 2,000 people over time, whether they obtain coverage or remain uninsured. The report analyzes the uninsured…

  • First Wave of Major New Survey Project on California’s Uninsured

    News Release

    California’s Uninsured Struggle With Costs and Access And Say They Want Insurance, But Most Have Heard Little About The Affordable Care Act, And Many Who Are Likely To Be Eligible For Medi-Cal or Exchange Subsidies Don’t Know It Many Undocumented Immigrants in CA Think They Will Get Coverage Through the ACA But Won’t Menlo Park, Calif. – California’s uninsured are skipping medical care, struggling with costs and want coverage, but many report knowing little about…

  • How Obamacare May Be Holding Down Costs

    From Drew Altman

    In his latest column published in Politico, Kaiser President and CEO Drew Altman examines the recent historic slowdown in health-care costs and discusses whether Obamacare is a contributing factor.

  • ACA Open Enrollment: If You Are Low-Income

    Fact Sheet

    This fact sheet explains 2020 health coverage options that may be available to people who have low incomes, including Medicaid coverage or individual insurance plans through Affordable Care Act (ACA) marketplaces.

  • Obamacare and You: If You Have Medicare…

    Fact Sheet

    This short explainer highlights some of the key information for people with Medicare about how Affordable Care Act, also known as Obamacare, may affect them.

  • Obamacare y Usted: Si tiene bajos ingresos y puede calificar para Medicaid

    Fact Sheet

    Obamacare crea muchas formas de obtener cobertura de salud. Usted puede aprender sobre sus opciones llenando una única aplicación. Así, se le dirá si califica para cobertura gratis o a bajo costo a través del programa Medicaid, o a través de los nuevos Mercados de Seguros Médicos que han sido establecidos en cada estado. Usted debería aplicar para cobertura aunque en el pasado no haya tenido la capacidad de tenerla a través del Medicaid o…