KFF designs, conducts and analyzes original public opinion and survey research on Americans’ attitudes, knowledge, and experiences with the health care system to help amplify the public’s voice in major national debates.
Mapping ACA Marketplace and Medicaid Enrollment by Congressional District
With an estimated 14 million people expected to become uninsured by 2034 due to major changes to Medicaid and the Affordable Care Act (ACA) Marketplaces in the 2025 reconciliation law plus the expiration of the ACA’s enhanced premium tax credits, KFF’s new interactive maps provide a way to view ACA Marketplace and Medicaid enrollment by congressional district across the U.S.
This ACA Marketplace enrollment map shows that more than half of Marketplace enrollees (55%) live in Republican districts. The highest shares of state enrollment are in Florida (16%), Georgia (11%), Texas (10%), and Utah (10%)—states that were all won by President Trump in 2024.
This new interactive map illustrates Medicaid enrollment by congressional district and eligibility group. In half of Republican congressional districts, at least 20% of residents are enrolled in Medicaid, and in half of Democratic districts, at least 25% are enrolled.
During this virtual event, KFF public opinion and survey experts provided analysis and insights on the latest findings from recent public opinion surveys about health care issues in advance of the midterms, including current public sentiment about Medicare-for-All and how it compares historically.
This chart pack summarizes KFF polling data on public opinion on Medicare-for-all and other national health plan proposals. The latest update finds that two-thirds of the public supports Medicare-for-all, while support changes drastically as respondents hear arguments from proponents and critics.
As the 2026 midterms approach, health care costs remain tied with gas as voters’ top midterm concerns and the Democrats hold a clear edge over the Republicans Party on who voters trust to handle many top electoral issues, including the cost of health care and the cost of living.
More people than ever got coverage through the Affordable Care Act Marketplaces in 2025, but the expiration of enhanced premium tax credits has driven up what people pay and contributed to declining enrollment in 2026.
Major federal changes to Medicaid eligibility and financing from the 2025 reconciliation law are coming, including new work requirements that will affect millions of Medicaid enrollees.
Federal vaccine policy has shifted toward fewer recommended routine childhood vaccinations, more emphasis on individual decision-making, and greater skepticism about the safety and efficacy of some vaccines.
As health care costs dominate the national political conversation, our 2026 KFF Women’s Health Survey shows the toll those costs are taking on women. Our new nationally representative survey of women and men ages 18–64 finds costs remain a major barrier for women, specifically — causing everything from delayed care to rationed medications to cuts in spending on basic needs.
This issue brief reviews the abortion-related initiatives currently slated to be on the ballot in November 2026 and examines how these measures may impact abortion access in several states.
Health care affordability is a top issue for many people. Why and how did care get so expensive? In this three-part video series, KFF experts look at the rising cost of health care in the U.S. from the macro level to the issues facing everyday Americans. Drawing on KFF policy analysis and polling, the videos examine the underlying drivers of health care spending, the true cost of employer sponsored health insurance and whether the Affordable Care Act has delivered on its promise. View the videos
Political leaders on both sides point fingers at health insurers for high costs and patient frustrations. How much blame do insurers, in fact, deserve for our health system’s problems? This three-part video series from KFF considers this question and the complicated answer, exploring what’s driving rising insurance premiums, whether insurers provide value, and who we trust to decide what gets covered and at what price. Watch and share →
More people than ever got coverage through the Affordable Care Act (ACA) Marketplaces in 2025, but the expiration of enhanced premium tax credits has driven up what people pay and contributed to declining enrollment in 2026. Law and regulatory changes also tightened ACA eligibility and enrollment requirements. Public opinion of the ACA remains generally favorable, although views remain divided along partisan lines.
Just a month away from the midterm elections, affordability worries continue to top the public’s list of midterm election issues, with health care costs and gas costs tying as the top economic concern, KFF’s new Health Tracking Poll finds. Voters overall trust Democrats more than Republicans to handle the cost of health care and the cost of living.
With the 2026 midterms about a month away, health care costs remain tied with gas as voters’ top midterm concerns and the Democrats hold a clear edge over the Republicans Party on who voters trust to handle many top electoral issues, including the cost of health care and the cost of living. Two-thirds of U.S. adults now favor Medicare-for-all, a new high in KFF Polling, but support shifts when competing claims from critics and proponents…
This chart pack summarizes KFF polling data on public opinion on Medicare-for-all and other national health plan proposals. The latest update finds that two-thirds of the public supports Medicare-for-all, while support changes drastically as respondents hear arguments from proponents and critics.
This brief describes the verification process for Medicaid work requirements in Nebraska and examines early data on outcomes for individuals subject to work requirements.
This issue brief reviews the abortion-related initiatives currently slated to be on the ballot in November 2026 and examines how these measures may impact abortion access in several states.
As health care costs dominate the national political conversation, our 2026 KFF Women’s Health Survey shows the toll those costs are taking on women. Our new nationally representative survey of women and men ages 18–64 finds costs remain a major barrier for women, specifically — causing everything from delayed care to rationed medications to cuts in spending on basic needs.
The KFF/AP Rural Voters Survey examines the views and political priorities of voters living in rural areas across the United States ahead of the 2026 midterm elections. The survey gauges rural voters' top election issues, growing struggles with cost of living and health care costs, as well as views on the Trump administration's health care policies.
Rural voters’ frustrations about the cost of living in their community are growing and appear to be chipping away at Republicans’ enthusiasm to vote as the midterm elections near, a new KFF/AP Survey of Rural Voters finds.