The Affordable Care Act signed by President Obama and which took effect in 2013 mandated all Americans obtain health insurance, and for those that didn't have it, the ACA created a federal and state marketplaces, also known as exchanges. The system was designed to facilitate coverage for the self-employed, the uninsured and anyone without access to employer-provided insurance, Medicaid or Medicare. But after just a few years, big insurance companies like Aetna, Anthem, and United Health have pulled out of the marketplace. This year, only 57 percent of enrollees in state exchanges have a choice of three or more insurers, down from 85 percent last year, according to the Kaiser Family Foundation. Enrollees in another five states have only one choice: take it or leave it. NewsHour Weekend's Christopher Booker went to one of those states, Alabama, to find out the impact.