Which action represents an example of Judicial Review?

Judicial review is the power of the courts to evaluate the actions of the legislative and executive branches of government and to determine whether those actions are consistent with the Constitution. This process is crucial in maintaining the supremacy of the Constitution and ensuring that no law or governmental action conflicts with it.

Assessing the constitutionality of a law directly embodies judicial review. When a court determines whether a law aligns with the Constitution, it is enforcing the principles of judicial review. This process often occurs when cases are brought before the courts questioning the legality or constitutionality of particular statutes or regulations.

The other options involve tasks typically performed by other branches of government or actions that do not relate directly to interpreting the law concerning the Constitution. Changing an existing statute and creating new federal regulations are legislative actions, while issuing a presidential order falls under executive authority. None of these actions directly engage with the judicial power to review the constitutionality of laws.