Thinking in terms of constitutional law and political reality as well as the historical record of federal-state relations, what is the current status of this relationship and what should it be in terms of both the Constitution and  the practical application of American governmental powers? Does the current implementation of the Affordable Care Act (ObamaCare) demonstrate strengths or weaknesses in America's federal system of government? You also might want to consider the current debate over immigration reform. Which level of government is more responsible for immigration, the federal or the states, or is it a combination of both?