How does the U. S Constitution limit the powers of the national and state government?

Article I, Section 10 of the Constitution of the United States puts limits on the powers of the states. States cannot form alliances with foreign governments, declare war, coin money, or impose duties on imports or exports.

Explanation:

this is true many people think today that blacks should be slaves also known as rasisim calling them many insults from slavery the idealogy of the south still exsist in some parts but not all