States' Rights: The concept of states' rights refers to the belief that individual states should have more power and autonomy in making decisions rather than being heavily controlled by a central government.
Nullification: Nullification is when a state declares a federal law unconstitutional within its borders and refuses to comply with it.
Supremacy Clause: The Supremacy Clause is a clause in the United States Constitution that establishes that federal law takes precedence over state laws when there is a conflict between them.