President Barack Obama's re-election victory eliminates the possibility of a wholesale repeal for his healthcare reform law, but still leaves questions about how much of his signature domestic policy achievement will be implemented as the national political focus shifts to the debt and deficit. The 2010 Patient Protection and Affordable Care Act, which represents the biggest overhaul of the $2.8 trillion U.S. healthcare system since the 1960s, aims to extend health coverage to more than 30 million uninsured Americans beginning in January 2014.