Federal Constitutional Law refers to the body of law that governs the interpretation and application of the United States Constitution. It establishes the framework for the federal government, outlining the powers and responsibilities of its branches: the Legislative, Executive, and Judicial. This area of law also protects individual rights and liberties through the Bill of Rights and subsequent amendments. The role of federal courts is crucial in interpreting constitutional provisions and resolving disputes related to federal law. Landmark cases, such as Marbury v. Madison, have shaped the understanding of judicial review, allowing courts to invalidate laws that conflict with the Constitution.