How are a States rights determined?

The determination of states' rights is primarily based on the United States Constitution. The Tenth Amendment of the Constitution explicitly states that powers not delegated to the federal government are reserved for the states or the people. This means that any authority or power not specifically granted to the federal government is retained by the states.

The interpretation and application of states' rights have often been subject to debates and legal disputes. The Supreme Court plays a crucial role in interpreting the Constitution and has made numerous rulings that have helped define the balance of power between the federal government and states. These interpretations are based on constitutional provisions, historical precedents, and evolving social and political contexts.

Additionally, the structure of the Constitution establishes a federal system where powers are divided between the federal government and the states. Enumerated powers, such as regulating interstate commerce or coining money, are specifically granted to the federal government. Concurrent powers, which are shared by both the federal government and states, include taxation and maintaining courts. Reserved powers, as mentioned in the Tenth Amendment, are those not directly addressed by the Constitution and, therefore, remain with the states.

In summary, states' rights are determined through constitutional provisions, judicial interpretation, and historical practices, ensuring a balance of power between the federal government and states, as envisioned by the framers of the Constitution.