How is judicial review a part of our federal government?

Judicial review is a fundamental aspect of the federal government that allows courts to assess the constitutionality of legislative and executive actions. Established by the landmark case Marbury v. Madison in 1803, it empowers the judiciary to invalidate laws and government actions that violate the Constitution. This mechanism ensures a system of checks and balances among the branches of government, safeguarding individual rights and maintaining the rule of law. By interpreting the Constitution, the judiciary plays a crucial role in shaping public policy and upholding democratic principles.