11. The Affordable Care Act of 2010

President Barack Obama’s introduction of the Affordable Care Act (ACA) in 2010 marked a transformative moment in U.S. healthcare policy. Aimed at expanding healthcare access and reducing costs, the ACA implemented significant reforms such as prohibiting insurance companies from denying coverage due to pre-existing conditions. The law sought to provide millions of uninsured Americans with health coverage, igniting intense political debate and legal challenges. While it has faced criticism and calls for repeal, the ACA has substantially increased the number of insured individuals and reshaped the nation’s approach to healthcare, influencing ongoing policy discussions.