Article 4 of the US Constitution outlines relations between states, requiring states to respect each other's laws, court rulings, and recognize privileges and immunities of citizens from other states. It also mandates protection from invasion and a republican form of government. Article 5 establishes how to amend the Constitution, requiring proposals to be approved by Congress and ratified by three-fourths of state legislatures. Article 6 establishes the supremacy of federal law over state law. Article 7 establishes that the Constitution would take effect after ratification by nine of the thirteen original states.

1. Articles 4-7 The Powers of the US Constitution to Change, Control and Represent the United States

6. Article 5 Amending the Constitution Amend = to Change (so Amending means Changing the Constitution)