Marbury v. Madison (1803) was a landmark decision of the United States Supreme Court that established the principle of judicial review. In the decision, written by Chief Justice John Marshall, the court struck down a congressional statute as unconstitutional for the first time in US history, thereby establishing the United States Constitution as a legal – not just a political – document.
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Definition
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24 Feb 1803In the case Marbury v. Madison, the Marshall Court establishes the principle of judicial review, enhancing the Court's role in the federal government.