Concurrent Powers: Concurrent powers are those that are shared by both the federal government and state governments. They include things like taxation, law enforcement, and establishing courts.
Supremacy Clause: The Supremacy Clause is a clause in the U.S. Constitution that establishes that federal law takes precedence over state law when there is a conflict between them.
Elastic Clause: The Elastic Clause, also known as the Necessary and Proper Clause, gives Congress the power to make laws necessary for carrying out its enumerated powers.