Judicial review is a key component of the US constitutional system, which gives the Supreme Court the authority to declare legislation, executive orders, and court rulings unconstitutional. By preventing government abuse and overreach, this power guarantees that the Constitution will always be the highest law of the land, protecting citizens' rights and freedoms. The Supreme Court ensures that laws are consistent with the Constitution through judicial review, thus securing individuals' fundamental rights, including individual liberties and freedoms. This authority has played a crucial role in determining how we exercise our constitutional rights, acting as a necessary check on the authority of the government, and making sure that the Constitution will continue to be a living document that supports people's rights for the future. In conclusion, the ruling made by Chief Justice John Marshall in Marbury v. Madison has had an irreversible impact on the constitutional rights that American citizens