Judicial review is the process under which executive and legislative actions are subject to review by the power of the courts. The courts decide if the law is in compliance with the constitution. The significance of Marbury vs. Madison was the supreme court declared that a law passed by congress was unconstitutional and therefore ruled the law could not be enforced. This case made the supreme court an important player in our history. Some notable examples of judicial review in the supreme court history would be Plessy vs. Fergusson, where the U.S. supreme court uphold state racial segregation laws for public facilities under the doctrine of “separate but equal.” This would remain the standard in U.S. law until 1954, when in the Brown vs. Board
