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Affordable Care Act

The ACA Marketplace

2025 KFF Marketplace Enrollees Survey

In 2025, about one in three ACA enrollees said they would be “very likely” to look for a lower-premium Marketplace plan If their premium payments doubled.

Cost Concerns and Coverage Changes: A Follow-Up Survey of ACA Marketplace Enrollees

Following the expiration of the enhanced premium tax credits for people with Affordable Care Act (ACA) Marketplace plans, a new KFF follow-up survey of the same Marketplace enrollees KFF surveyed in 2025 finds half (51%) of returning enrollees say their health care costs are “a lot higher” this year compared to last year, including four in 10 who specifically say their premiums are “a lot higher.”

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POLLING

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.
DATA

Marketplace Enrollment is Down in 2026—But All of the Data Isn’t in Yet

ANALYSIS

Higher Premium Payments or Higher Deductibles: The ACA's Tradeoffs

QUIZ

Test Your Knowledge of the Affordable Care Act

ANALYSIS

Competition Increased in Individual Market But Fell in Fully Insured Group Markets

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  • Why the U.S. Doesn’t Have More Hospital Beds

    From Drew Altman

    With much of the news focused on the surge capacity of the nation’s hospitals during the COVID-19 pandemic, Drew Altman’s Axios column examines why the nation has a shortage of hospital beds and what can be done about it.

  • Coronavirus Response and the Affordable Care Act

    Policy Watch

    This post examines the Affordable Care Act's impact 10 years after its enactment and how its provisions, especially those that expand coverage opportunities, could address the health threat and economic upheaval caused by the coronavirus pandemic.

  • Coronavirus Response and the Affordable Care Act

    Issue Brief

    This post examines the Affordable Care Act's impact 10 years after its enactment and how its provisions, especially those that expand coverage opportunities, could address the health threat and economic upheaval caused by the coronavirus pandemic.

  • The Affordable Care Act’s Enduring Resilience

    Perspective

    In this article in the Journal of Health Politics, Policy and Law, Larry Levitt examines the Affordable Care Act 10 years after it's enactment. The article notes that the law has taken numerous blows, yet due to its policy design and the political forces it has unleashed, the law has shown remarkable resilience.

  • The Effects of Medicaid Expansion under the ACA: Studies from January 2014 to January 2020

    Report

    This literature review summarizes findings from 404 studies of the impact of state Medicaid expansions under the ACA published between January 2014 (when the coverage provisions of the ACA went into effect) and January 2020. It includes studies, analyses, and reports published by government, research, and policy organizations using data from 2014 or later. This body of research suggests that the expansion presents an opportunity for gains in coverage, improvements in access and financial security, and economic benefits for states and providers.

  • Even Supporters May Not Understand Medicare-for-All

    From Drew Altman

    In this Axios column, Drew Altman shows that the majority of supporters don’t know how Medicare-for-all works, with both positive and negative implications for support if they knew more.

  • Tracking the Role of Health Care in the 2020 Election: What Do The Polls Tell Us

    Perspective

    In this February 2020 post for The JAMA Health Forum, Mollyann Brodie and Ashley Kirzinger examine the role health care has played in the primary election to date, what the polling data says about the issue, including Medicare-for-all and a public option, and what to expect from the issue during the rest of the 2020 election campaign.