How does the Commerce Clause shape power between national and state governments?

How does the Commerce Clause shape power between national and state governments?

• A. The President can regulate interstate commerce by executive order.
• B. States regulate all commerce; federal government has no role.
• C. Congress regulates interstate commerce; states retain police powers; federal law preempts when valid.
• D. The Supreme Court alone governs interstate commerce with no Congressional role.

Answer: (C)