Which Constitutional Amendment emphasizes the reservation of rights to the states?

The Tenth Amendment to the Constitution emphasizes the reservation of rights to the states and the people. This amendment states that any powers that are not specifically delegated to the federal government nor prohibited to the states are reserved for the states or for the people. This principle is rooted in the desire to limit federal authority and ensure that states maintain certain powers, thus supporting the concept of federalism in which power is distributed between the national and state governments. By including this amendment, the framers sought to protect states' rights and individual liberties, affirming that rights not mentioned in the Constitution are still retained by the states and the citizens.