Supreme Court's Decision in Department of Transportation v. Association of American Railroads

On March 9 the Supreme Court ruled that Amtrak is a governmental entity for purposes of the Separation of Powers; therefore it did not violate the Constitution for Congress to give Amtrak a voice in the development of metrics and standards for evaluating the performance of passenger rail service. This was a non-controversial decision -- but it does have implications for King v. Burwell, the Affordable Care Act case.