Judicial Review
The power of judicial review is the power of the courts to determine whether or not the government has violated the laws of the Constitution. In other words, judicial review is the power to declare something unconstitutional, or against the constitution. The Supreme Court has used the power of judicial review in many cases throughout the nation. However, in most cases the Supreme Court found that the government was in fact being constitutional and not the other way around. There are some exceptions to that.