
John Marshall, who served as Chief Justice of the U.S. Supreme Court from 1801 to 1835, is widely regarded as one of the most influential justices in American history. Appointed by President John Adams, Marshall helped establish the judiciary as a co-equal branch of government and played a critical role in defining the scope of federal power. His landmark decision in Marbury v. Madison (1803) established the principle of judicial review, allowing the Supreme Court to strike down laws it deemed unconstitutional. This ruling fundamentally reshaped the balance of power between the branches of government, ensuring that the judiciary could act as a check on the legislative and executive branches.
Throughout his tenure, Marshall consistently advanced a vision of a strong federal government, often siding with the interests of the central government over states’ rights. In cases like McCulloch v. Maryland (1819) and Gibbons v. Ogden (1824), he reinforced the scope of federal power under the Constitution, particularly in matters of interstate commerce and the interpretation of the Necessary and Proper Clause. Marshall’s rulings helped solidify the federal judiciary’s role in American governance and significantly shaped the evolution of constitutional law. His legacy endures in the principles of judicial review and federalism that continue to influence the Court’s decisions today.