Federalism:A system of government where power is divided between a central authority and constituent political units (like states), allowing for distinct powers and responsibilities.
Supremacy Clause: A clause in the U.S. Constitution stating that federal law takes precedence over state laws and constitutions when there is a conflict between the two.
Judicial Review:The power of courts to assess whether a law or government regulation is consistent with the constitution, potentially striking down laws deemed unconstitutional