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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

Timely insights and analysis from KFF staff

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  • Data Note: Strongly Held Views on the ACA

    Feature

    Since the passage of the Affordable Care Act in 2010, Kaiser Family Foundation polling has found the public divided in their overall views of the law. At the same time, an intensity gap in opinion has existed since 2010, with the share of the public holding strongly unfavorable views of the law outnumbering the share with strongly favorable views. A new analysis of Kaiser Family Foundation polling data finds that intensity gap began to close in spring 2017. The share with a “very favorable” view is now roughly equal to the share with a “very unfavorable” view.

  • Proposed Medicaid Section 1115 Waivers in Maine and Wisconsin

    Issue Brief

    While the future of legislation to repeal and replace the Affordable Care Act (ACA) and make fundamental changes to the structure and funding of the Medicaid program is uncertain, states and the Administration may achieve major changes to Medicaid through the use of Section 1115 Medicaid waivers. Wisconsin submitted a waiver amendment request to CMS in June 2017 and Maine submitted a waiver application to CMS in August 2017. Unlike previous waivers that encompass the ACA’s Medicaid expansion, Wisconsin and Maine are seeking waiver authority to make significant changes to Medicaid that would affect non-expansion Medicaid populations.

  • Kaiser Health Tracking Poll – August 2017: The Politics of ACA Repeal and Replace Efforts

    Feature

    Following the U.S. Senate’s failed vote on the “skinny repeal”, the latest Kaiser Health Tracking Poll finds that the majority of the public say it is a “good thing” that the Senate did not pass the bill that would have repealed and replaced the ACA. A large share of Americans think President Trump and his administration should do what they can to make the current health care law work and a majority of the public want to see bipartisan efforts to improve the 2010 health care law. However, about half of Republicans and Trump supporters would like to see Republicans in Congress keep working on a plan to repeal the ACA, and most Republicans and Trump supporters endorse using hard-ball tactics to encourage Democrats to start negotiating with President Trump on a replacement plan. The majority of the public are also unaware that health insurance companies choosing not to sell insurance plans or charging higher premiums in certain marketplaces only affect those who purchase their own insurance on these marketplaces.

  • Poll: Large Majority of the Public, Including Half of Republicans and Trump Supporters, Say the Administration Should Try to Make the Affordable Care Act Work

    News Release

    Most Republicans Are “Disappointed” But Not “Angry” That Repeal-and-Replace Legislation Did Not Pass Senate After the Senate’s failure to pass legislation to repeal and replace the Affordable Care Act, the latest Kaiser Health Tracking Poll finds that eight in 10 Americans (78%) say President Trump and his administration should do what they can to make…

  • The ACA Stability “Crisis” In Perspective

    From Drew Altman

    In this column for Axios, Drew Altman presents new data analysis showing how many people are impacted by premium increases in the non-group market, and discusses the implications. 

  • JAMA Forum: Has Obamacare Become Trumpcare?

    Perspective

    With the effort to repeal or replace the Affordable Care Act seemingly on hold or even dead, Larry Levitt discusses what the Trump administration could do to make the ACA successful - including providing clarity around individual mandate enforcement and cost-sharing reduction payments; maintaining outreach and consumer assistance; and encouraging insurers to participate in the individual insurance marketplaces. The post is now available at The JAMA Forum.