What did the marbury VS Madison do for the supreme court?

The Marbury v. Madison case, decided in 1803, established the principle of judicial review, allowing the Supreme Court to invalidate laws and actions that it finds unconstitutional. This landmark decision significantly enhanced the power of the Supreme Court, affirming its role as a co-equal branch of government and a check on the legislative and executive branches. It solidified the judiciary's authority to interpret the Constitution, shaping the balance of power in the U.S. government.