In 2019, the United States federal government spent $1.1 trillion, or approximately 25% of the overall federal budget, on just four government health care programs; Medicare, Medicaid, the Children's Health Insurance Program (CHIP) and the Affordable Care Act (ACA). In addition to these well-known programs, the Department of Defense spends tens of billions of dollars every year providing health care to service members, veterans and their families through programs like TRICARE. Likewise, all states administer their own Medicaid programs and typically match the funding provided by the federal government, pumping even more public money into this sector.