The courts should be an intermediary body between the people and the legislator in order to keep them within the limits of their powers, among other things. The interpretation of laws is the real and particular jurisdiction of the courts. A constitution is and must be considered by judges as a fundamental law. It is therefore for them to determine their importance and the service of a particular legal act emanating from the legislature. If there is an irreconcilable gap between the two, preference should, of course, be given to what has the primary obligation and validity; or, in other words, the Constitution should be preferred to the Statute, the intention of the people to their representatives. However, the Supreme Court has exercised judicial review in other contexts. In particular, the Court struck down a number of state laws that violated the Constitution. The first case in which the Supreme Court struck down a state law as unconstitutional was Fletcher v. Peck, 10 U.S. (6 Cranch) 87 (1810).  It is the heavy task and duty of the judicial authority to say what the law is. Those who apply the rule to specific cases must necessarily explain and interpret this rule.
When two laws collide, the courts must decide how each law works. Hylton v. United States, 3 U.S. (3 Dall.) 171 (1796), was the first Supreme Court case to challenge the constitutionality of an act of Congress. It has been argued that a federal transportation tax violates the constitutional provision on “direct” taxes. The Supreme Court upheld the tax and found it constitutional. Although the Supreme Court did not reject the legislation in question, it began the process of judicial review by reviewing the constitutionality of the tax. The case was widely circulated at the time, and observers understood that the court was reviewing the constitutionality of a congressional bill.
 Since the court considered the law to be valid, it did not have to claim that it had the power to declare a law unconstitutional.  The judiciary of the United States rests on a Supreme Court and subordinate courts that Congress may order and establish from time to time. . The judiciary extends to all matters of law and equity arising out of this Constitution, the laws of the United States, and treaties entered into or entered into under its authority. . In all cases concerning ambassadors, other public ministers and consuls, as well as in those where a State must be a contracting party, the Supreme Court has jurisdiction at first instance. In all other above-mentioned cases, the Supreme Court has jurisdiction to appeal, both in law and in terms of facts, with such exceptions and under the rules enacted by Congress. The courts should be seen as bulwarks of a limited constitution against legislative encroachments.  In the United States, unconstitutionality is the only reason a federal court removes a federal law.
Washington J.A., speaking on behalf of marshall Court, put it this way in an 1829 case: Marshall then discussed the role of the courts, which is at the heart of the doctrine of judicial review. It would be “nonsense,” Marshall said, to require the courts to enforce a law that is void. Rather, it is for the courts to interpret and apply the Constitution and to determine whether there is a conflict between a law and the Constitution: the text of the Constitution does not contain a specific reference to the power of judicial review. On the contrary, the power to declare laws unconstitutional was considered an implied power under Articles III and VI.  Moreover, a suspicion or possibility of unconstitutionality is not sufficient for U.S. courts to strike down a law. Alexander Hamilton stated in Federalist 78 that the standard of review should be an “inconsistent derogation” with the Constitution. Antifederalists agreed that the courts would not be able to repeal federal laws if there was no conflict with the Constitution. For example, Robert Yates, who wrote under the pseudonym “Brutus,” asserted that “the courts of the general government will be required to comply with the laws of the general legislature that do not violate the Constitution.”  Under this Constitution, judges will control the legislature, as the Supreme Court has the ultimate power to determine the extent of Congress` powers. They are supposed to make a declaration to the Constitution, and there is no power over them to overturn their judgment.
. The Supreme Court then has the right to give an interpretation independently of the legislature, the Constitution and any part of it, and in this system there is no power to correct or abolish its interpretation. Therefore, if the legislature adopts laws that are incompatible with the meaning that judges attach to the Constitution, they will annul them.  When deciding a case, the Supreme Court usually decides what laws mean, how they are applied, and whether they violate the Constitution. The ability to decide whether a law violates the Constitution is called judicial review. It is this process that the judiciary uses to control the legislative and executive branches. Judicial review is not an express power conferred on the courts, but an implied power. The Supreme Court ruled in 1803 in a case called Marbury v.
Madison, who clearly expressed the court`s power of judicial review. In the federal system, the courts can only rule on real cases or controversies; It is not possible to ask federal courts to review a law without at least one party having the legal authority to participate in a legal dispute. This principle means that the courts sometimes do not exercise their power of control because of lack of jurisdiction, even if a law appears to be unconstitutional. In some state courts, such as the Massachusetts Supreme Court of Justice, the legislature may, in certain circumstances, be referred by the legislature or executive branch for an advisory decision on its constitutionality before it is passed (or enforced). The principle of judicial review has its roots in the principle of the separation of powers. The separation of powers was introduced in the 17th century by Baron de Montesquieu, but judicial control did not come into force until a century later. When a state law conflicts with a valid federal law, courts may report the state law as an inviolable violation of the supremacy clause. But a federal court cannot overturn a law unless there is a violation of federal law or the federal constitution. Judicial review has now established itself as a cornerstone of constitutional law.
In September 2017, the U.S. Supreme Court ruled that parts or all of some 182 laws of the U.S. Congress were unconstitutional, most recently in Matal v. Tam and 2019 Iancu v. Brunetti decided to remove part of the Lanham Act of July 1946 for violating freedom of expression. Some have argued that judicial review by the federal courts alone is unconstitutional, based on two arguments. First, the constitutional power of judicial review is not specifically delegated to the federal courts. The Tenth Amendment reserves to the states (or the people) powers that are not expressly delegated to the federal government.
The second argument is that only states have the power to ratify amendments to the “Supreme Law” (the U.S. Constitution), and that each state`s understanding of the language of the amendment thus becomes its implementation and effect, making it necessary for states to play a role in interpreting its meaning. .