Question

What did the 10th amendment do?

Answer 1

Answer:

Tenth Amendment, amendment (1791) to the Constitution of the United States, part of the Bill of Rights, providing the powers “reserved” to the states. ... The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.

Answer 2

“The Tenth Amendment's simple language—“The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people”—emphasizes that the inclusion of a bill of rights does not change the fundamental character of the national government” (2021).

Read more about it https://constitutioncenter.org/interactive-constitution/interpretation/amendment-x/interps/129