Marbury v. Madison" (1803) is a landmark U.S. Supreme Court case that established the principle of judicial review. Chief Justice John Marshall delivered the opinion, asserting the Court's authority to review and invalidate government actions that violate the Constitution. The case arose from a political dispute during the Adams administration, involving the appointment of justices of the peace. While establishing the Court's power of judicial review, Marshall also held that the portion of the Judiciary Act of 1789 granting the Court original jurisdiction over such cases was unconstitutional. This decision solidified the judiciary's role in interpreting the Constitution and checking the powers of the other branches of government.