Judicial Review.
That power is the power of judicial review.
The Judicial Branch had this power. The process in which this branch declare laws constitutional or unconstitutional is called the Judicial Review
Judicial review
The US Supreme Court's ability to declare an Act of Congress unconstitutional arises from the implied power of judicial review.
Judicial review
The power to declare a law unconstitutional (Judicial Review).
The Supreme Court gained the power to declare laws unconstitutional
The power of the supreme court to declare a law "unconstitutional" is called Judicial Review. No part of the constitution actually grants this power explicitly to the Supreme Court, but the case of Marbury vs. Madison established this power and has been the accepted precedent for granting the Supreme Court the power of Judicial Review ever since.
The power to declare an act of congress unconstitutional. I hopes this help got it from my textbook <3333> hopes you get it right
The Judicial Branch has the power to declare the acts unconstitutional.
The power of judicial review allows the US Supreme Court to declare laws, policies, executive orders and US treaties that are relevant to cases before the Court unconstitutional and nullify them if they violate the principles of the US Constitution.
(1) declaring invalid laws that violate the U.S. Constitution, (2) asserting the supremacy of federal laws or treaties if they differ from state and local laws, and (3) serving as the final authority on the interpretation of the U.S. Constitution.