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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

Timely insights and analysis from KFF staff

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  • 2008 Election Briefs

    Poll Finding

    Health care remains among the top three election issues voters want to hear the presidential candidates discuss. Kaiser's new series of election briefs frame the challenges the heath care system faces, provide basic facts, and offer questions to assess the presidential candidates' plans on key health policy issues. Check back for more issue briefs.  Eliminating Racial/Ethnic Disparities in Health Care: What are the Options  Health Care Costs and Election 2008  Women's Health and Election 2008…

  • Women’s Health and Election 2008

    Issue Brief

     Download PDF Women consistently cite health care as one of the top issues they want the Presidential candidates to address, reflecting their experiences with the health care system as patients, mothers, and caregivers for frail and disabled family members.  Women’s priorities for health care reform cut across many critical topics, including health insurance coverage and affordability, the cornerstones of the candidates’ health proposals, as well as long-term care, delivery system issues, and reproductive health.  This…

  • Voters and Health Reform in the 2008 Presidential Election

    Poll Finding

    This analysis, published in the November 6, 2008, New England Journal of Medicine (NEJM), finds that seven in ten registered voters say major changes are needed in the U.S. health care system. The article is the second in a series of reports published in NEJM examining how the election can provide insights about future health policy. The article examines the public’s perceptions of the state of the American health care system, the role of health…

  • Medicare Now and in the Future

    Issue Brief

    Download PDF Issue Medicare is a valuable source of health insurance for nearly 45 million Americans – mainly seniors ages 65 and older, but also 7 million younger adults with permanent disabilities.  Before Medicare was signed into law in 1965, about half of all seniors lacked hospital insurance.  Today, virtually all people ages 65 and over are covered by Medicare.  Medicare is a popular program, but faces a number of issues and challenges in the…

  • The Decline in the Uninsured in 2007: Why Did It Happen and Can It Last?

    Issue Brief

    This policy brief examines the underlying shifts in health insurance coverage in 2007, which resulted in a 1.5 million decrease in the number of uninsured people under age 65, due to increased public coverage. This includes about 300,000 in Massachusetts, which implemented its comprehensive health reform that year. The brief also projects that the current economic downturn and rising unemployment rate likely will cause the number of uninsured to grow by at least 2 million…

  • Florida Medicaid Reform Waiver: Early Findings and Current Status

    Issue Brief

    Florida Medicaid Reform Waiver: Early Findings and Current Status This policy brief provides an overview of the Florida Medicaid reform and a summary of available research findings to date from various evaluators of the program. It was issued at the same time as a separate Health Affairs article highlighting findings from Kaiser Family Foundation's 2006-2007 Survey of Florida Medicaid Beneficiaries. The Foundation, in collaboration with the Urban Institute and the University of Florida, is conducting…

  • Health Affairs Article: Florida’s Medicaid Reform: Informed Consumer Choice?

    Report

    Health Affairs Article: Florida's Medicaid Reform: Informed Consumer Choice? Florida's Medicaid reform program aims to encourage consumer choice and market competition by giving health plans new authority to vary benefits and having enrollees choose among the different plans. However, about three in 10 enrollees were not aware that they needed to make this health plan choice and over half of those who were aware reported difficulty making a plan choice, according to a Health Affairs…

  • Trends in Access to Care Among Working-Age Adults, 1997-2006

    Issue Brief

    Trends in Access to Care Among Working-Age Adults, 1997-2006 This policy brief finds about 39 million working-age adults nationally reported cost as a barrier to receiving needed health care in 2006, a number that grew by an average of 1 million people annually over the decade studied. Uninsured working-aged adults experienced the most consistent erosion over the 10 years, resulting in a widening gap in access to care between insured and uninsured adults. Policy Brief…

  • 2008 Update on Consumers’ Views of Patient Safety and Quality Information

    Poll Finding

    2008 Update on Consumers' Views of Patient Safety and Quality Information An updated examination of consumers' views on health care quality information reveals major challenges remain in providing the public with comparative quality information and encouraging its use. The 2008 Update on Consumers' Views of Patient Safety and Quality Information finds that three in 10 (30%) Americans say they have seen health care quality comparisons of health insurance plans, hospitals, or doctors in the past…

  • Kaiser Health Tracking Poll: Election 2008 — September 2008

    Poll Finding

    The latest Kaiser Health Tracking Poll: Election 2008 finds that health care has crept up in importance as an election issue in recent months among a key voting group: political independents, who ranked it as highly as Democrats did in this poll.  Roughly one in four (26%) independents rank health care as one of the top issues they would "most like to hear the presidential candidates talk about." Health care's importance has risen among independents by…