Article V provides for amending the Constitution by proposal of Congress or of two-thirds of the state legislatures and by ratification of three-fourths of the states.
Article VI accepts that contracts made before the adoption of the Constitution are valid. It states that the Constitution and laws made by Congress are supreme laws of the land overriding state law. Members of state and federal legislatures, judicial officers, and members of the executive branch all must take an oath to support the Constitution.
Article VII stipulates that the ratification of nine states is sufficient to establish the Constitution.
