"Obamacare"is the informal and most-used term for The Patient Protection and Affordable Care Act,also known as the Affordable Care Act(ACA),and is a United States federal statute signed into law by President Barack Obama on March 23,2010.Together with the Health Care and Education Reconciliation Act,the ACA represents the most signifi cant regu latory overhaul of the United States healthcare system since the passage of Medicare and