Supremacy Clause

The Supremacy Clause is the name usually given to the second clause of Article 6 of the U.S. Constitution, which established two things: that the Constitution is "the supreme Law of the Land" and that all laws of all states and the Federal Government will be subordinate to the Constitution. The Supremacy Clause has become one of the core elements of stare decisis, or judicial review as set forth in Chief Justice John Marshall’s ruling in the case of Marbury v. Madison.