For the first time in US history in the decision of Marbury versus Madison, the Supreme Court determined that an act of Congress
was unconstitutional what is the significance of the supreme courts ability to determine the constitutionality of an act of Congress of a law? Please answer in paragraph form!
The Marbury versus Madison case added judicial review, which is the Supreme's Court authority to review past laws and declare whether or not it is constitutional or unconstitutional. Though Congress creates these laws, the Supreme Court interprets and checks if these laws are constitutional or not.