The Affordable Care Act’s impact on coverage, access to care, and systematic exclusion in our health care system The Affordable Care Act set off an unprecedented wave of health insurance enrollment as the most sweeping overhaul of the U.S. health insurance system since 1965. In the years since its enactment, some 20 million uninsured Americans gained access to coverage. And yet, the law remained unpopular and politically vulnerable. While the ACA extended social protections to some groups,...