Answer:
“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:
It was to ensure that the federal government did not have too much power over the states.
Explanation:
After winning independence, the founding fathers did not want to have to give too much power to the federal government, so they created the Articles of Confederation. That created a federal government that was too weak, so the Constitution had the concept of federalism which ensured that the states would not lose too much power to the federal government.