Challenge Your Exam Readiness With Our Free CLEP Practice Questions

On CLEP History and Government–aligned exams, students are expected to know foundational Supreme Court decisions and how they shaped constitutional interpretation. Marbury v. Madison (1803) is pivotal because it articulated judicial review—the Court’s authority to invalidate acts of Congress that conflict with the Constitution. Chief Justice John Marshall’s opinion reasoned that the Constitution is the supreme law and that it is “emphatically the province and duty of the judicial department to say what the law is.” Without judicial review, the judiciary could not fulfill its role as a co-equal branch checking legislative and executive excesses. By contrast, McCulloch v. Maryland (1819) affirmed implied powers and federal supremacy regarding a national bank; Gibbons v. Ogden (1824) clarified Congress’s power over interstate commerce; and Dred Scott v. Sandford (1857) notoriously denied citizenship to enslaved persons and invalidated the Missouri Compromise. Recognizing the distinct constitutional principles each case established is central to CLEP objectives on separation of powers, federalism, and the development of constitutional law.