What was the implication of the Supreme Court’s decision in Marbury v. Madison for the government?

The Supreme Court's decision in Marbury v. Madison established the principle of judicial review, which empowers the judiciary to examine and invalidate laws and executive actions that conflict with the Constitution. This landmark case confirmed the authority of the Supreme Court to interpret the law, ensuring that any legislation or actions taken by the executive branch conform to the constitutional framework. By asserting this power, the decision cemented the role of the Supreme Court as a co-equal branch of government, capable of checking the powers of the legislative and executive branches. The ruling laid the groundwork for the judiciary's ability to act as a guardian of the Constitution, influencing the dynamics of power within the federal government and reinforcing the concept that the Constitution is the supreme law of the land.