Final answer:
The Supreme Court's power of judicial review was established by the Court's decision in Marbury v. Madison in 1803. Judicial review is the power of the courts to examine actions taken by the other branches of government and determine their constitutionality.
Step-by-step explanation:
The Supreme Court's power of judicial review was established by the Court's decision in Marbury v. Madison in 1803. Judicial review is the power of the courts to examine actions taken by the other branches of government and determine their constitutionality. In this landmark case, the Supreme Court declared an act of Congress to be unconstitutional, asserting its authority to check the other branches of government.