“This essay argues that the Patient Protection and Affordable Care Act exceeds Congress’s authority to regulate interstate commerce and its taxing power, and infringes on state prerogatives. The lawsuits that have been filed by states and individuals arguing these points raise serious legal issues, not the least of which is whether there are any constitutional limits remaining on government power. Because the new law is unprecedented—in both its regulatory scope and its expansion of federal authority—it is difficult to predict how courts will react. However, a holding that these measures were in fact constitutional would fundamentally alter the relationship of the federal government to the states and the people, as there would seem to be no constitutional limits on federal power.”