New federal data shows that Affordable Care Act (ACA) enrollment falls sharply in many states over the past year, according to a first complete 50-state breakdown of the declines. The reports point to steep reductions after the enhanced ACA subsidies that had been available through January expired. Ohio and Oklahoma are cited as examples of the largest drops, with each state losing nearly one-third of enrollees. Across the country, the number of people covered by ACA plans is reported to have decreased in multiple states rather than in only a few locations. The coverage comes from a federal dataset that tracks changes following the end of the enhanced subsidy period, which is linked in the reporting to the timing of the enrollment downturn. The sources do not describe specific causes beyond the subsidy expiration context and do not provide detailed state-by-state numerical changes beyond the highlighted states. Overall, the articles emphasize the broad geographic scope of the enrollment declines and the significance of the new 50-state data release in documenting how many states experienced reductions.