As the Senate evaluates potential changes to the Affordable Care Act (ACA), a new study, released today by Health Affairs as a Web First, examines the effects of gaining insurance coverage. The authors evaluated telephone survey data of low-income adults from 2013 through 2016 in three states: Kentucky, which expanded Medicaid; Arkansas, which expanded private insurance to low-income adults through the federal Marketplace; and Texas, which did not expand coverage to this group.