Since the judicial power of the United States was to be exercised over a people whose judicial habits were thus fixed; since it must, to some extent, take cognizance of rights that would have to be adjudicated in accordance with the jurisprudence under which they had arisen; and since the individuals who would have a title to enter its tribunals might reasonably demand remedies as ample as a judicature of English origin could furnish, it was highly expedient that the Constitution should fully adopt the main features of that judicature. It is quite true, that a provision in the Constitution extending the judicial power to "all cases" affecting certain persons or certain rights, might be regarded by the legislature as a sufficient authority for the establishment of inferior courts with both a legal and an equitable jurisdiction, and might be considered to confer such a double jurisdiction on the supreme tribunal contemplated by the Constitution. But the text of the Constitution itself would be the source to which the people of the United States would look, when called upon to adopt it, for the benefits which they were to derive from it, and there would be no part of it which they would scrutinize more closely than that which was to establish the judicial power of the new government. If they found in it no imperative declaration making it the duty of Congress to provide for a jurisdiction in equity as well as at law, and no express adoption of such a jurisdiction for the supreme tribunal, they might well say that the character of the judicial power was left to the accidental choice of Congress, or to doubtful interpretation, instead of being expressly ordained in its full and essential proportions by the people. If a citizen of one State were to pursue a remedy in the courts of the Union against a citizen of another State, or if one State should have a judicial controversy with another, that would be a very imperfect system of judicature which should leave the form and extent of the remedy to be determined by the local law where the process was to be instituted, or which should confine the relief to the forms and proceedings of the common law. If the appellate jurisdiction of the supreme national tribunal were to be exercised over any class of controversies originating in the State courts, it was extremely important that the Constitution should expressly ascertain whether suits at law, or suits in equity, or both, were to be embraced within that appellate power. For these reasons, it became necessary for the Convention to supply this defect, by extending the judicial power, both in equity and at law, to the several cases embraced in it.

Another defect in the report of the committee,—or what was regarded as a defect when the Constitution was ratified,—and one which the Convention did not supply, was in the omission of any express provision for trial by jury in civil cases. Such a provision was supplied by an amendment proposed by the first Congress that assembled under the Constitution, and adopted in 1791; but it was regarded by the framers of the Constitution as inexpedient, on account of the different construction of juries in the different States, and the diversity of their usages with respect to the cases in which trial by jury was used.[352] It is quite possible that, after the Constitution had declared that the jurisdiction of the national tribunals should extend to all cases "in law" affecting certain parties or rights, Congress would not have been at liberty to establish inferior tribunals for the trial of cases "in law" by any other method than according to the course of the common law, which requires that the fact in such cases shall be tried by a jury. But the objection which afterwards prevailed was connected, as we shall presently see, with what was regarded as a dangerous ambiguity in the clause of the Constitution which gave to the Supreme Court its appellate jurisdiction both as to law and fact.

The plan of the committee of detail contemplated a supreme tribunal with original jurisdiction over a few of the cases within the judicial power, and appellate jurisdiction over all the other cases enumerated. Inquiry was made in the Convention, whether this appellate jurisdiction was intended to embrace fact as well as law, and to extend to cases of common law as well as to those of equity and admiralty jurisdiction. The answer was given, that such was the intention of the committee, and the jurisdiction of the federal court of appeals, under the Confederation, was referred to as having been so construed. The words "both as to law and fact" were thereupon introduced into the description of the appellate power, by unanimous consent.[353] Various explanations were subsequently given, when the Constitution came before the people, of the force and meaning of these words. The most probable and the most acute of these explanations was that made by Hamilton in the Federalist,[354] which limited the effect of the words, in reference to common law cases, to so much cognizance of the facts involved in a record as is implied in the application of the law to them by the appellate tribunal. But the truth was, the words were of very comprehensive import. While they were used in order to save to the Supreme Court power to revise the facts in equity and admiralty proceedings, they made no distinction, and imposed upon Congress no duty to make a distinction, between cases in equity and admiralty, and cases at common law; and although it might be true, that in some States the facts in all cases were tried by a jury, and that in some cases so tried there ought to be a power to revise the facts, yet it was not conceded that such a power ought to exist over the verdicts of juries in cases of common law jurisdiction. This explanation will serve to show the double purpose of the amendment made in 1791. The people of many of the States required an express guaranty that trial by jury should be preserved in suits at common law, and that the facts once tried by a jury should not be re-examined otherwise than according to the rules of the common law, which have established certain well-defined limits to the power of an appellate tribunal concerning the facts appearing to have been found by a jury.[355]

There was still another omission in the report of the committee, of great magnitude. They had included in the judicial power cases arising under the laws of the United States, but they had not embraced cases arising under the Constitution and under treaties. At the same time, the Constitution was to embrace not only the powers of the general government, but also special restrictions upon the powers of the States; and not only the Constitution itself, but the laws made in pursuance of its provisions, and all treaties made under the authority of the United States, were to be the supreme law of the land. This supremacy could only be enforced by some prescribed action of some department of the general government. The idea of a legislative arrest, or veto, of State laws supposed to be in conflict with some provision of the national Constitution, or with a treaty or a law of the United States, had been abandoned. The conformity, moreover, of the laws of Congress to the provisions of the Constitution, could only be determined by the judicial power, when drawn into question in a judicial proceeding. The just and successful operation of the Constitution, therefore, required that, by some comprehensive provision, all judicial cases[356] arising under the Constitution, laws, or treaties of the United States—whether the question should grow out of the action of a State legislature, or the action of any department of the general government—should be brought within the cognizance of the national judiciary. This provision was added by the Convention. It completed the due proportions and efficacy of this branch of the judicial power.

Trial by jury of all criminal offences (except in cases of impeachment) had been provided for by the committee of detail, and such trial was to be had in the State where the offence had been committed. The Convention, in order to secure the same right of a jury trial in cases where the offence had been committed out of any State, provided that the trial should be at such place or places as the Congress might by law have directed.[357]

These additions, with one other which included within the judicial power all cases to which the United States might be party; the transfer of the trial of impeachments to the Senate; and the transfer to the judiciary of controversies between the States respecting jurisdiction or territory, and controversies respecting land titles claimed under the grants of different States,—were the principal changes and improvements made in the plan of the committee.

The details of the arrangement will perhaps fail to interest the general reader. Yet I cannot but think that to understand the purpose and operation of this department of the national government would be a very desirable acquisition for any of my readers not already possessed of it; and having completed the description of the mode in which the judicial power was constructed, I shall conclude this part of the subject with a brief statement of its constitutional functions.

One of the leading purposes for which this branch of the government was established, was to enable the Constitution to operate upon individuals, by securing their obedience to its commands, and by protecting them in the enjoyment of the rights and privileges which it confers. The government of the United States was eminently intended, among other purposes, to secure certain personal rights, and to exact certain personal duties. The Constitution confers on the general government a few special powers, but it confers them in order that the general government may accomplish for the people of each State the advantages and blessings for which the State governments are presumed to be, and have in fact proved to be, inadequate. It lays upon the governments and people of the States certain restrictions, and it lays them for the protection of the people against an exercise of State power deemed injurious to the general welfare. The government of the United States, therefore, is not only a government which seeks to protect the welfare and happiness of the people who live under it, but it is so constructed as to make its citizens directly and individually its subjects, exacting of them certain duties, and securing to them certain rights. It comes into this relation by reason of its supreme legislative power over certain interests, and the supreme authority of its restrictions upon the powers of the States; and it is enabled to make this relation effectual through its judicial department, which can take cognizance of every duty that the Constitution exacts and of every right that it confers, whenever they have assumed a shape in which judicial power can act upon them. Let us take, as illustrations of this function of the national judiciary, a single instance of the obedience required by the Constitution, and also one of a right which it protects. The Constitution empowers Congress to lay and collect duties; which, when they are laid and incurred, become a debt due from the individual owner of the property on which they are assessed to the general government. Payment, in disputed cases, might have been left to be enforced by executive power; but the Constitution has interposed the judicial department, as the more peaceful agent, which can at once adjudicate between the government and the citizen, and compel the payment of what is found due. Again, the Constitution provides that no State shall pass any law impairing the obligation of contracts. An individual supposing himself to be aggrieved by such a law might have been left to obtain such redress as the judicial or legislative authorities of the State might be disposed to give him; but the Constitution enables him finally to resort to the national judiciary, which has power to relieve him against the operation of the law upon his personal rights, while the law itself may be left upon the statute-book of the State.

But while the judicial department of the general government was thus designed to enforce the duties and protect the rights of individuals, it is obvious that, in a system of government where such rights and duties are to be ascertained by the provisions of a fundamental law framed for the express purpose of defining the powers of the general government and of each of its departments, and establishing certain limits to the powers of the States, the mere act of determining the existence of such rights or duties may involve an adjudication upon the question, whether acts of legislative or executive power are in conformity with the requirements of the fundamental law. On the one hand, the judicial department is to see that the legislative authority of the Union does not exact of individuals duties which are not within its prescribed powers, and that no department of the general government encroaches upon the rights of any other, or upon the rights of the States; and, on the other hand, it has to see that the legislative authority of the States does not encroach upon the powers conferred upon the general government, or violate the rights which the Constitution secures to the citizen. All this may be, and constantly is, involved in judicial inquiries into the rights, powers, functions, and duties of private citizens or public officers; and therefore, in order that the judicial power should be able effectually to discharge its functions, it must possess authority, for the purposes of the adjudication, to declare even an act of legislation to be void, which conflicts with any provision of the Constitution.