Answer:
Judicial review is an important aspect of the U.S. government because it allows the judicial branch of government to serve as a check on the legislative and executive branches, ensuring that they do not exceed their constitutional authority.
Under the system of judicial review, the courts have the power to review the constitutionality of laws and executive actions. This means that if a law or action is found to be in violation of the Constitution, the courts have the power to declare it invalid and unenforceable. This power is derived from the principle of "judicial supremacy," which holds that the Constitution is the supreme law of the land, and that the courts have the final authority to interpret and apply it.
By providing a check on the legislative and executive branches, judicial review helps to ensure that the government operates within the bounds of the Constitution and protects the rights and freedoms of citizens. It also helps to prevent abuses of power and can serve as a safeguard against tyranny and oppression.
Overall, judicial review is an essential aspect of the U.S. government because it helps to maintain the balance of power among the three branches of government and ensures that the government operates in accordance with the principles and values enshrined in the Constitution.