U.S. Supreme Court
Marbury v. Madison, 5 U.S. 137 (1803) (USSC+)

Mr. Chief Justice MARSHALL delivered the opinion of the Court.

. . . It is then the opinion of the Court:
1. That, by signing the commission of Mr. Marbury, the President of the United States appointed him a justice of peace for the County of Washington in the District of Columbia, and that the seal of the United States, affixed thereto by the Secretary of State, is conclusive testimony of the verity of the signature, and of the completion of the appointment, and that the appointment conferred on him a legal right to the office for the space of five years.

2. That, having this legal title to the office, he has a consequent right to the commission, a refusal to deliver which is a plain violation of that right, for which the laws of his country afford him a remedy.
It remains to be inquired whether,

3. He is entitled to the remedy for which he applies. This depends on:
1. The nature of the writ applied for, and
2. The power of this court.

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This . . . is a plain case of a mandamus, either to deliver the commission or a copy of it from the record, and it only remains to be inquired:
Whether it can issue from this Court.

The act to establish the judicial courts of the United States authorizes the Supreme Court "to issue writs of mandamus, in cases warranted by the principles and usages of law, to any courts appointed, or persons holding office, under the authority of the United States."

The Secretary of State, being a person, holding an office under the authority of the United States, is precisely within the letter of the description, and if this Court is not authorized to issue a writ of mandamus to such an officer, it must be because the law is unconstitutional, and therefore absolutely incapable of conferring the authority and assigning the duties which its words purport to confer and assign.

The Constitution vests the whole judicial power of the United States in one Supreme Court, and such inferior courts as Congress shall, from time to time, ordain and establish. This power is expressly extended to all cases arising under the laws of the United States; and consequently, in some form, may be exercised over the present case, because the right claimed is given by a law of the United States.

In the distribution of this power. it is declared that "The Supreme Court shall have original jurisdiction in all cases affecting ambassadors, other public ministers and consuls, and those in which a state shall be a party. In all other cases, the Supreme Court shall have appellate jurisdiction."

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To enable this court then to issue a mandamus, it must be shown to be an exercise of appellate jurisdiction, or tobe necessary to enable them to exercise appellate jurisdiction.

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It is the essential criterion of appellate jurisdiction that it revises and corrects the proceedings in a cause alreadyinstituted, and does not create that cause. . . . [Y]et to issue such a writ to an officer for the delivery of a paper is, in effect, the same as to sustain an original action for that paper, and therefore seems not to belong to appellate, but to original jurisdiction. Neither is it necessary in such a case as this to enable the Court to exercise its appellate jurisdiction.

The authority, therefore, given to the Supreme Court by the act establishing the judicial courts of the United States to issue writs of mandamus to public officers appears not to be warranted by the Constitution, and it becomes necessary to inquire whether a jurisdiction so conferred can be exercised.

The question whether an act repugnant to the Constitution can become the law of the land is a question deeply interesting to the United States, but, happily, not of an intricacy proportioned to its interest. It seems only necessary to recognise certain principles, supposed to have been long and well established, to decide it.

That the people have an original right to establish for their future government such principles as, in their opinion, shall most conduce to their own happiness is the basis on which the whole American fabric has been erected. The exercise of this original right is a very great exertion; nor can it nor ought it to be frequently repeated. The principles, therefore, so established are deemed fundamental. And as the authority from which they proceed, is supreme, and can seldom act, they are designed to be permanent.

This original and supreme will organizes the government and assigns to different departments their respective powers. It may either stop here or establish certain limits not to be transcended by those departments.

The Government of the United States is of the latter description. The powers of the Legislature are defined and limited; and that those limits may not be mistaken or forgotten, the Constitution is written. To what purpose are powers limited, and to what purpose is that limitation committed to writing, if these limits may at any time be passed by those intended to be restrained? The distinction between a government with limited and unlimited powers is abolished if those limits do not confine the persons on whom they are imposed, and if acts prohibited and acts allowed are of equal obligation. It is a proposition too plain to be contested that the Constitution controls any legislative act repugnant to it, or that the Legislature may alter the Constitution by an ordinary act.

Between these alternatives there is no middle ground. The Constitution is either a superior, paramount law, unchangeable by ordinary means, or it is on a level with ordinary legislative acts, and, like other acts, is alterable when the legislature shall please to alter it.

If the former part of the alternative be true, then a legislative act contrary to the Constitution is not law; if the latter part be true, then written Constitutions are absurd attempts on the part of the people to limit a power in its own nature illimitable.

Certainly all those who have framed written Constitutions contemplate them as forming the fundamental and paramount law of the nation, and consequently the theory of every such government must be that an act of the Legislature repugnant to the Constitution is void.

This theory is essentially attached to a written Constitution, and is consequently to be considered by this Court as one of the fundamental principles of our society. It is not, therefore, to be lost sight of in the further consideration of this subject.

If an act of the Legislature repugnant to the Constitution is void, does it, notwithstanding its invalidity, bind the Courts and oblige them to give it effect? Or, in other words, though it be not law, does it constitute a rule as operative as if it was a law? This would be to overthrow in fact what was established in theory, and would seem, at first view, an absurdity too gross to be insisted on.

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It is emphatically the province and duty of the Judicial Department to say what the law is. Those who apply the rule to particular cases must, of necessity, expound and interpret that rule. If two laws conflict with each other, the Courts must decide on the operation of each.

So, if a law be in opposition to the Constitution, if both the law and the Constitution apply to a particular case, so that the Court must either decide that case conformably to the law, disregarding the Constitution, or conformably to the Constitution, disregarding the law, the Court must determine which of these conflicting rules governs the case. This is of the very essence of judicial duty.

If, then, the Courts are to regard the Constitution, and the Constitution is superior to any ordinary act of the Legislature, the Constitution, and not such ordinary act, must govern the case to which they both apply.

Those, then, who controvert the principle that the Constitution is to be considered in court as a paramount law are reduced to the necessity of maintaining that courts must close their eyes on the Constitution, and see only the law.

This doctrine would subvert the very foundation of all written Constitutions. It would declare that an act which, according to the principles and theory of our government, is entirely void, is yet, in practice, completely obligatory. It would declare that, if the Legislature shall do what is expressly forbidden, such act, notwithstanding the express prohibition, is in reality effectual. It would be giving to the Legislature a practical and real omnipotence with the same breath which professes to restrict their powers within narrow limits. It is prescribing limits, and declaring that those limits may be passed at pleasure.

That it thus reduces to nothing what we have deemed the greatest improvement on political institutions -- a written Constitution, would of itself be sufficient, in America where written Constitutions have been viewed with so much reverence, for rejecting the construction. But the peculiar expressions of the Constitution of the United States furnish additional arguments in favour of its rejection.

The judicial power of the United States is extended to all cases arising under the Constitution.

Could it be the intention of those who gave this power to say that, in using it, the Constitution should not be looked into? That a case arising under the Constitution should be decided without examining the instrument under which it arises?
This is too extravagant to be maintained.

In some cases then, the Constitution must be looked into by the judges.

. . . [I]t is apparent that the framers of the Constitution contemplated that instrument as a rule for the government of courts, as well as of the Legislature.

Why otherwise does it direct the judges to take an oath to support it? This oath certainly applies in an especial manner to their conduct in their official character. How immoral to impose it on them if they were to be used as the instruments, and the knowing instruments, for violating what they swear to support!

The oath of office, too, imposed by the Legislature, is completely demonstrative of the legislative opinion on this
subject. It is in these words:

"I do solemnly swear that I will administer justice without respect to persons, and do equal right to the poor and to the rich; and that I will faithfully and impartially discharge all the duties incumbent on me as according to the best of my abilities and understanding, agreeably to the Constitution and laws of the United States."

Why does a judge swear to discharge his duties agreeably to the Constitution of the United States if that Constitution forms no rule for his government? if it is closed upon him and cannot be inspected by him?

If such be the real state of things, this is worse than solemn mockery. To prescribe or to take this oath becomes equally a crime.
It is also not entirely unworthy of observation that, in declaring what shall be the supreme law of the land, the Constitution itself is first mentioned, and not the laws of the United States generally, but those only which shall be made in pursuance of the Constitution, have that rank.

Thus, the particular phraseology of the Constitution of the United States confirms and strengthens the principle, supposed to be essential to all written Constitutions, that a law repugnant to the Constitution is void, and that courts, as well as other departments, are bound by that instrument.

The rule must be discharged.