This morning, the Supreme Court heard oral arguments regarding the constitutional limits on Congress’s authority to hand off some of its power to make national policy to others in Department of Transportation v. Association of American Railroads. During the oral argument, the federal government was represented by Curtis E. Gannon, an assistant to the U.S. Solicitor General. The trade group of U.S. railroads was represented by Thomas H. Dupree, Jr., of the Washington, D.C. office of the law firm of Gibson, Dunn & Crutcher. As soon as the transcript is available, we will provide additional information on the argument.