The American legal system was fundamentally shaped by the landmark case Marbury v. Madison, which established the principle of judicial review - the Supreme Court's power to determine if laws are constitutional.
Chief Justice John Marshall's historic 1803 decision gave the Supreme Court authority to review acts of Congress and declare them void if they violate the Constitution. This case arose when William Marbury sued after not receiving his commission as justice of the peace, despite being appointed by outgoing President John Adams. While the Court acknowledged Marbury's right to the commission, Marshall ruled that the Court lacked jurisdiction to order its delivery. More importantly, he declared Section 13 of the Judiciary Act of 1789 unconstitutional because it attempted to expand the Supreme Court's original jurisdiction beyond what was specified in Article III of the Constitution.
The U.S. Supreme Court's power and jurisdiction continues to be defined by this precedent-setting case. Federal judges, including Supreme Court justices, are nominated by the President and must be confirmed by the Senate. The qualifications and appointment of federal judges require that they serve life terms during "good behavior" and can only be removed through impeachment. Unlike elected officials, federal judges do not have to meet age, citizenship, or residency requirements. However, they typically have extensive legal experience and strong academic credentials. This lifetime appointment and independence from political pressures allows judges to make decisions based on the law rather than popular opinion. The Supreme Court's role as ultimate interpreter of the Constitution remains one of the most important checks and balances in American government, ensuring that both Congress and the Executive Branch operate within constitutional bounds.