evidence: The United States Treasury Department announced today, September 10th, that almost 50 million people have obtained healthcare coverage through marketplace exchanges created by the Affordable Care Act since its enactment more than a decade ago. The Department data show that one in seven Americans have been or are covered by the law. And since President Biden was inaugurated in January 2021, 18.2 million Americans have gotten ACA coverage for the first time. Rising enrollment since 2021 has been driven by an expansion under the Biden Administration of premium tax credits to include individuals and families with household incomes up to 400% of the federal poverty level, which equates to $58,000 for a single person and $120,000 for a family of four. [...] When Biden assumed office, he sought to enlarge the ACA program and reverse some of the changes implemented by the Trump Administration that had shrunk its size. As a consequence of the aforementioned premium tax credits issued to eligible enrollees and a provision incorporated in the Inflation Reduction Act passed in 2022 that includes extended subsidies for plans that sell insurance on the ACA exchanges, record numbers of Americans are now enrolled in healthcare arrangements related to the ACA.