First. To all cases in law and equity, arising under the Constitution and the laws of the United States. This corresponds with the two first classes of causes, which have been enumerated, as proper for the jurisdiction of the United States. It has been asked, what is meant by "cases arising under the Constitution," in contradiction from those "arising under the laws of the United States"? The difference has been already explained. All the restrictions upon the authority of the State legislatures furnish examples of it. They are not, for instance, to emit paper money; but the interdiction results from the Constitution, and will have no connection with any law of the United States. Should paper money, notwithstanding, be emited, the controversies concerning it would be cases arising under the Constitution and not the laws of the United States, in the ordinary signification of the terms. This may serve as a sample of the whole.
It has also been asked, what need of the word "equity What equitable causes can grow out of the Constitution and laws of the United States?
There is hardly a subject of litigation between individuals, which may not involve those ingredients of fraud, accident, trust, or hardship, which would render the matter an object of equitable rather than of legal jurisdiction, as the distinction is known and established in several of the States. It is the peculiar province, for instance, of a court of equity to relieve against what are called hard bargains: these are contracts in which, though there may have been no direct fraud or deceit, sufficient to invalidate them in a court of law, yet there may have been some undue and unconscionable advantage taken of the necessities or misfortunes of one of the parties, which a court of equity would not tolerate. In such cases, where foreigners were concerned on either side, it would be impossible for the federal judicatories to do justice without an equitable as well as a legal jurisdiction. Agreements to convey lands claimed under the grants of different States, may afford another example of the necessity of an equitable jurisdiction in the federal courts. This reasoning may not be so palpable in those States where the formal and technical distinction between LAW and EQUITY is not maintained, as in this State, where it is exemplified by every day's practice.
The judiciary authority of the Union is to extend:
Second. To treaties made, or which shall be made, under the authority of the United States, and to all cases affecting ambassadors, other public ministers, and consuls. These belong to the fourth class of the enumerated cases, as they have an evident connection with the preservation of the national peace.
Third. To cases of admiralty and maritime jurisdiction. These form, altogether, the fifth of the enumerated classes of causes proper for the cognizance of the national courts.
Fourth. To controversies to which the United States shall be a party.
These constitute the third of those classes.
Fifth. To controversies between two or more States; between a State and citizens of another State; between citizens of different States. These belong to the fourth of those classes, and partake, in some measure, of the nature of the last.
Sixth. To cases between the citizens of the same State, claiming lands under grants of different States. These fall within the last class, and are the only instances in which the proposed Constitution directly contemplates the cognizance of disputes between the citizens of the same State.
Seventh. To cases between a State and the citizens thereof, and foreign States, citizens, or subjects. These have been already explained to belong to the fourth of the enumerated classes, and have been shown to be, in a peculiar manner, the proper subjects of the national judicature.
From this review of the particular powers of the federal judiciary, as marked out in the Constitution, it appears that they are all conformable to the principles which ought to have governed the structure of that department, and which were necessary to the perfection of the system. If some partial inconviences should appear to be connected with the incorporation of any of them into the plan, it ought to be recollected that the national legislature will have ample authority to make such exceptions, and to prescribe such regulations as will be calculated to obviate or remove these inconveniences. The possibility of particular mischiefs can never be viewed, by a wellinformed mind, as a solid objection to a general principle, which is calculated to avoid general mischiefs and to obtain general advantages.
PUBLIUS
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