More than a decade after its enactment, the future of the Affordable Care Act (ACA) remains uncertain as the U.S. Supreme Court takes up another challenge to the law’s constitutionality in California v. Texas (known as Texas v. U.S. in the lower courts). Oral argument is scheduled for Tuesday, November 10, 2020.
The ACA remains in effect while the litigation is pending. However, if all or most of the law ultimately is struck down, it will have complex and far-reaching consequences for the nation’s health care system, affecting nearly everyone in some way.
For information about ACA Marketplace Open Enrollment, including fact sheets and 300+ FAQs, visit our collection of resources on Understanding Health Insurance.
Featured Affordable Care Act Resources

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.
Issue Brief See More
Related Affordable Care Act Resources
- 5 Charts About Public Opinion on the Affordable Care Act and the Supreme Court
- Affordability in the ACA Marketplace Under a Proposal Like Joe Biden’s Health Plan
- Eligibility for ACA Health Coverage Following Job Loss
- Protecting People With Pre-Existing Conditions Isn’t As Easy As It Seems
- Is COVID-19 a Pre-Existing Condition? What Could Happen if the ACA is Overturned
- Mental Illnesses May Soon Be the Most Common Pre-Existing Conditions
- Pre-Existing Condition Prevalence for Individuals and Families
- Eliminating the ACA: What Could It Mean for Medicaid Expansion?
- Loss of the Affordable Care Act Would Widen Racial Disparities in Health Coverage
- Loss of the ACA Could Greatly Erode Health Coverage and Benefits for Women
- The Effects of Medicaid Expansion under the ACA: Updated Findings from a Literature Review
- FAQs: Health Insurance Marketplace and the ACA
- Status of State Medicaid Expansion Decisions: Interactive Map
- Preventive Services Tracker
- Tracking Section 1332 State Innovation Waivers

Potential Impact of California v. Texas Decision on Key Provisions of the Affordable Care Act
The Supreme Court will review the constitutionality of the Affordable Care Act (ACA) this November in California v. Texas. This fact sheet summarizes the major provisions of the ACA, illustrating the breadth of its changes to the health care system. If all of most of the ACA is struck down, many of these provisions could be eliminated.
Issue Brief See More
Refine Results
- view as grid
- view as list
Three Quarters of the Public, Including a Majority of Trump Supporters, Want President Trump to Try to Make the Affordable Care Act Work
Americans See Many Factors Behind AHCA’s Failure, But Few Republicans Blame President Trump Despite divided views about the Affordable Care Act, three-fourths of the public (75%) say President Trump and his administration should do what they can to make the law work, while one in five (19%), including 38 percent…
News Release Read MoreInsurer Financial Performance in the Early Years of the Affordable Care Act
This data note looks at trends in insurer financial performance in the individual market, as the Affordable Care Act (ACA) marketplaces were established, finding that the market showed signs of stabilizing in 2016.
Issue Brief Read MoreData Note: Medicaid Managed Care Growth and Implications of the Medicaid Expansion
Most states today rely heavily on risk-based managed care organizations (MCOs) to serve Medicaid beneficiaries. This Data Note discusses the current role of managed care in Medicaid and examines differences in managed care growth between states that expanded Medicaid to low-income adults under the Affordable Care Act (ACA) and states that did not expand Medicaid.
Issue Brief Read MoreKaiser Health Tracking Poll – Late April 2017: The Future of the ACA and Health Care & the Budget
With the ongoing debate about the future of the Affordable Care Act (ACA), the latest tracking poll examines the public awareness of and attitudes about some recent developments related to the 2010 health care law, including uncertainty about cost-sharing reduction payments and insurers opting out of some health insurance marketplaces. The poll also takes a look at Americans’ budget and health care priorities.
Report Read MoreMedicaid Coverage of Pregnancy and Perinatal Benefits: Results from a State Survey
This report details findings from a state survey on perinatal benefits in place as of July 1, 2015 for women enrolled in fee-for-service Medicaid through different eligibility pathways, including traditional pre-ACA Medicaid pathways, expansion, and pregnancy-related eligibility for the following services: basic prenatal care, counseling and support services, delivery and postpartum care, and breastfeeding supports.
Report Read MoreUsing Medicaid to Wrap Around Private Insurance: Key Questions to Consider
This issue brief raises three key questions for consideration if using Medicaid to wrap around private coverage is going to be considered as an alternative to the ACA’s Medicaid expansion under the BCRA. We draw on existing information about state Medicaid premium assistance programs to date, the administrative complexity involved, and the financing implications of premium assistance programs.
Issue Brief Read MoreSome Counties May Lack an ACA Marketplace Insurer Next Year – But Many More Lack Medicare Advantage Plans Today
This issue brief notes that more counties lack Medicare Advantage plans than are at risk of not having an Affordable Care Act marketplace insurer next year. It examines the overlap between the counties without Medicare Advantage or marketplace insurers and assesses some of the potential reasons why such counties have trouble attracting insurers.
Issue Brief Read MoreKaiser Health Tracking Poll – August 2017: The Politics of ACA Repeal and Replace Efforts
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 Finding Read MoreData Note: Strongly Held Views on the ACA
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.
Poll Finding Read MoreKaiser Health Tracking Poll: ACA, Replacement Plans, Women’s Health
The latest Kaiser Health Tracking Poll examines the public’s early attitudes towards the House Republican plan to repeal and replace the Affordable Care Act and finds that more expect the new plan will make things worse rather than better when it comes to the number of people with coverage and costs for those buying insurance on their own. The survey also measures public support for continuing current federal Medicaid funding to Planned Parenthood, gauges the importance of various ACA provisions for women’s and children’s health, and revisits the public’s knowledge on key provisions included in the health care law.
Poll Finding Read More