How did the supreme court limit the power of the states?

The Supreme Court has limited the power of the states through various landmark decisions that emphasize federal authority and individual rights. Cases such as McCulloch v. Maryland established the supremacy of federal law over state law, while decisions like Gibbons v. Ogden reinforced federal control over interstate commerce. Additionally, rulings in cases involving civil rights, such as Brown v. Board of Education, curtailed state powers that upheld segregation and discrimination. Overall, the Court has played a crucial role in defining the balance between state and federal powers, often favoring the latter.