Amazon.com description: Product Description: The president and Congress govern the United States, but who keeps them in check? As the highest court in the land, the U.S. Supreme Court is head of the judicial branch, the third arm in the federal government. When President Harry Truman wanted to show the U.S. steel industry who was boss in 1952, the Supreme Court showed him that no one is above the law. Credit the Court s strong stance to John Marshall, the most influential of the early chief justices. He cemented the idea that the judicial branch must be equal to the executive and legislative branches of the federal government. How did he do it and how does the Supreme Court affect our lives? Find out what the Constitution says, and what it doesn t say, about the U.S. court system.