What does Article Four discuss in the Constitution?

Article Four of the Constitution primarily discusses the relationship between the states and the federal government, focusing on states' powers and limits. It establishes several key principles regarding how states interact with each other and with the federal system as a whole. This includes the Full Faith and Credit Clause, which mandates that states respect the laws and judicial decisions of other states, and the Privileges and Immunities Clause, which ensures that citizens are treated equally across state lines. Additionally, Article Four outlines procedures for admitting new states into the Union and guarantees a republican form of government in each state.

Understanding this article is crucial, as it frames the foundational aspects of state sovereignty while also delineating the boundaries of state power in relation to federal authority. It serves to maintain a balance by allowing states to govern themselves while also ensuring a cohesive national framework. This duality is essential for maintaining the federal system envisioned by the framers of the Constitution.