ACA Marketplace Changes and Public Opinion in 2026

The Affordable Care Act (ACA) continues to be a focal point of healthcare debate in the United States. As of early 2026, significant changes are impacting the ACA marketplaces, driven by both administrative actions and congressional decisions. Public opinion remains deeply divided along partisan lines, with affordability emerging as a key concern for many Americans.

ACA Favorability and Shifting Public Opinion

Since its enactment in 2010, public opinion on the ACA has fluctuated. While overall favorability has been more consistent since 2017, substantial partisan divides persist. The KFF Health Tracking Poll has consistently monitored these trends, providing valuable insights into how different demographic groups view the law and how those views have evolved over time.

Trump Administration’s Regulatory Changes

The Trump administration has implemented several regulatory changes aimed at reshaping the ACA marketplaces. A key focus has been on expanding access to “catastrophic” health plans [1]. These plans offer lower monthly premiums but come with high deductibles – often exceeding $10,000 annually – before most medical costs are covered.

These changes come as premium costs are rising. The administration is also proposing changes to benefit packages, out-of-pocket costs, and healthcare provider networks, as outlined in a 577-page rule [4]. These adjustments aim to provide more choice and potentially lower premiums for some consumers, but could also lead to significantly higher out-of-pocket expenses for others, potentially exceeding $27,000 annually for certain coverage types.

Impact of Expired Subsidies

A major factor driving affordability concerns is the expiration of enhanced tax credits at the end of 2025. Without an extension by Congress, premiums are expected to increase substantially, with estimates suggesting an average 75% rise [2]. This increase could lead up to 2 million people to drop their health insurance coverage [4], exacerbating coverage gaps for vulnerable populations.

A bipartisan group in the House has introduced legislation to extend the enhanced subsidies for another year, potentially keeping them in place through the 2026 midterm elections [2]. However, the bill’s fate is uncertain, as many Republicans oppose extending the tax credits, citing a potential cost of at least $335 billion over 10 years [2].

Congressional and Administrative Actions

Both Congress and the Trump administration have been actively involved in reshaping the ACA marketplaces. The administration has pursued changes through regulations, while Congress has considered legislative action, including the House budget reconciliation bill [1]. The administration has also proposed changes intended to crack down on fraud within the program [3].

Looking Ahead

The future of the ACA marketplaces remains uncertain. The interplay between congressional action, administrative regulations, and evolving public opinion will determine the accessibility and affordability of health insurance for millions of Americans. The upcoming midterm elections are likely to play a significant role, as healthcare affordability has become a politically charged issue. Continued monitoring of enrollment numbers and premium costs will be crucial in assessing the impact of these changes.