More than a decade after its enactment, tens of millions of people nationwide rely on coverage options created through the Affordable Care Act of 2010 (ACA). The law has survived multiple court challeges at the U.S. Supreme Court and repeated attempts by Republicans in Congress to repeal it. Subsequent legislation has scaled back some aspects of the law and expanded others, including by the COVID-19 relief bill, the American Response Plan Act of 2021. This page highlights relevant analysis about the ACA and proposed and enacted changes to it..

For information about ACA Marketplace Open Enrollment, including fact sheets and 300+ FAQs, visit our collection of resources on Understanding Health Insurance.

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As Unemployment Skyrockets, KFF Estimates More than 20 Million People Losing Job-Based Health Coverage Will Become Eligible for ACA Coverage through Medicaid or Marketplace Tax Credits

Coverage Losses Will Affect At Least a Million Residents in Each of Eight States: California, Texas, Pennsylvania, New York, Georgia, Florida, Michigan and Ohio With more than 31 million workers filing unemployment claims between March 1 and May 2 as the coronavirus crisis hit the nation’s economy, a new KFF…

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JAMA Forum: Trump vs Biden on Health Care

In this September 2020 post for The JAMA Health Forum, Larry Levitt highlights differences in the records and policy plans of President Donald Trump and former Vice President Joe Biden on key health care issues.

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Explaining California v. Texas: A Guide to the Case Challenging the ACA

This issue brief answers key questions about California v. Texas (known as Texas v. US in the lower courts), the case challenging the Affordable Care Act to be heard by the Supreme Court.

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Affordability in the ACA Marketplace Under a Proposal Like Joe Biden’s Health Plan

This KFF analysis finds that expanding Affordable Care Act (ACA) premium subsidies like Democratic presidential nominee Joe Biden has proposed would lower the cost of Marketplace coverage for nearly all potential enrollees, including the uninsured and others currently priced out of the Marketplace. Biden’s plan would, however, increase federal spending, which we do not attempt to estimate here.

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Effects of the ACA Medicaid Expansion on Racial Disparities in Health and Health Care

This issue brief examines how the ACA Medicaid expansion has affected racial disparities in health coverage, access to care, health outcomes, and economic outcomes.

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Loss of the Affordable Care Act Would Widen Racial Disparities in Health Coverage

In November, the Supreme Court is scheduled to hear arguments on a legal challenge that seeks to overturn the Affordable Care Act (ACA). This analysis shows that new coverage options under the ACA have contributed to large gains in coverage, particularly among people of color, helping to narrow longstanding racial disparities in health coverage.

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Medicaid Covers People with Pre-Existing Conditions, Too

In recent weeks, the possible overturning of the Affordable Care Act (ACA) in court and the upcoming election have focused attention on the issue of protections for people with pre-existing conditions. While the focus has been on the ACA’s private insurance protections, Medicaid also plays a significant role in covering people with pre-existing conditions.

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Tracking Poll: A Large and Growing Majority, Including Republicans, Does Not Want the Supreme Court to Overturn the ACA’s Protections for People with Pre-Existing Conditions

As the Senate considers Judge Amy Coney Barrett’s nomination to the Supreme Court, the October KFF Health Tracking Poll finds a large majority (79%) of the public do not want the Court to overturn the Affordable Care Act’s protections for people with pre-existing medical conditions, up 17 percentage points since…

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A Closer Look at the Uninsured Marketplace Eligible Population Following the American Rescue Plan Act

This analysis examine key demographic characteristics of the uninsured population eligible for subsidies to buy Marketplace coverage following the American Rescue Plan.

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KFF Health Tracking Poll – May 2021: Prescription Drug Prices Top Public’s Health Care Priorities

The latest KFF Health Tracking Poll explores the public’s views on the U.S. role in distributing COVID vaccines to other countries, health care priorities for Congress, prescription drug regulations and price negotiations, and affordability changes in the COVID-19 relief bill.

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Filling the need for trusted information on national health issues, the Kaiser Family Foundation is a nonprofit organization based in San Francisco, California.