What did the Supreme Court decision in the case of Marburg v. Madison do for the supreme court?

The Supreme Court decision in Marbury v. Madison (1803) established the principle of judicial review, allowing the Court to invalidate laws and executive actions that conflict with the Constitution. This landmark ruling affirmed the judiciary's role as an equal branch of government and set a precedent for the power of the courts to interpret the law. It significantly enhanced the authority of the Supreme Court, ensuring that it could act as a check on legislative and executive powers.