The Affordable Care Act, also known as Obamacare, is a U.S. law that lets people buy health insurance using a state-run marketplace. People who aren't insured through their employers can sign up for Affordable Care Act coverage.
The Affordable Care Act, or ACA, was signed into law by President Obama in 2010. It overhauled parts of the healthcare system, especially insurance purchased by individuals for themselves and their families. New rules meant that insurers had to cover people with preexisting conditions, as well as children until the age of 26. The act was politically controversial at first, but by 2024, more than 20 million people had health insurance through the ACA.