Judicial review was introduced as a result of the Marbury v. Madison case, and its impact on the U.S. government has been key in deciding many things. Judicial review was introduced during the case and it is an important addition to the checks and balances system and helped the Supreme Court become even with the other branches of the government(Unknown B 1)(McBride 1). Judicial review may seem like it was invented out of thin air, but Alexander Hamilton mentioned something like judicial review in the Federalist Papers(DeVillers 49)(Unknown D 3). Judicial review existed in England before it was invented in the U.S., so it may have been in influence for judicial review in the U.S. (DeVillers 50). Judicial review played a key role in determining this case, and it was a deciding factor in the outcome of this case. Marbury v. Madison, its outcome was a result of judicial review and answering the 3 main questions that John Marshall asked. Marbury petitioned for a writ of mandamus (Unknown D 2). After all, 3 questions were put through careful and intensive consideration. He was denied his writ of mandamus after careful consideration of all the questions (DeVillers