This case gave the Supreme Court the power of Judicial Review, to examine laws and executive acts, to see if they violated the Constitution. * Gideon v. Wainwright Mapp v. Ohio McCulloch v. Maryland Marbury v. Madison

The case that gave the Supreme Court the power of Judicial Review, allowing it to examine laws and executive acts to determine if they violate the Constitution, is **Marbury v. Madison**. This landmark decision, decided in 1803, established the principle that the Supreme Court could invalidate laws that it found to be unconstitutional.