In the long series of acts of indirect aggression, the first was the strenuous agitation by citizens of the Northern States, in Congress and out of it, of the question of negro emancipation in the Southern States.
The second step in this path of evil consisted of acts of the people of the Northern States, and in several instances of their governments, aimed to facilitate the escape of persons held to service in the Southern States and to prevent their extradition when reclaimed according to law and in virtue of express provisions of the Constitution. To promote this object, legislative enactments and other means were adopted to take away or defeat rights which the Constitution solemnly guaranteed. In order to nullify the then existing act of Congress concerning the extradition of fugitives from service, laws were enacted in many States forbidding their officers, under the severest penalties, to participate in the execution of any act of Congress whatever. In this way that system of harmonious cooperation between the authorities of the United States and of the several States, for the maintenance of their common institutions, which existed in the early years of the Republic was destroyed; conflicts of jurisdiction came to be frequent, and Congress found itself compelled, for the support of the Constitution and the vindication of its power, to authorize the appointment of new officers charged with the execution of its acts, as if they and the officers of the States were the ministers, respectively, of foreign governments in a state of mutual hostility rather than fellow-magistrates of a common country peacefully subsisting under the protection of one well-constituted Union. Thus here also aggression was followed by reaction, and the attacks upon the Constitution at this point did but serve to raise up new barriers for its defense and security.
The third stage of this unhappy sectional controversy was in connection with the organization of Territorial governments and the admission of new States into the Union. When it was proposed to admit the State of Maine, by separation of territory from that of Massachusetts, and the State of Missouri, formed of a portion of the territory ceded by France to the United States, representatives in Congress objected to the admission of the latter unless with conditions suited to particular views of public policy. The imposition of such a condition was successfully resisted; but at the same period the question was presented of imposing restrictions upon the residue of the territory ceded by France. That question was for the time disposed of by the adoption of a geographical line of limitation.
In this connection it should not be forgotten that when France, of her own accord, resolved, for considerations of the most far-sighted sagacity, to cede Louisiana to the United States, and that accession was accepted by the United States, the latter expressly engaged that "the inhabitants of the ceded territory shall be incorporated in the Union of the United States and admitted as soon as possible, according to the principles of the Federal Constitution, to the enjoyment of all the rights, advantages, and immunities of citizens of the United States; and in the meantime they shall be maintained and protected in the free enjoyment of their liberty, property, and the religion which they profess;" that is to say, while it remains in a Territorial condition its inhabitants are maintained and protected in the free enjoyment of their liberty and property, with a right then to pass into the condition of States on a footing of perfect equality with the original States.
The enactment which established the restrictive geographical line was acquiesced in rather than approved by the States of the Union. It stood on the statute book, however, for a number of years; and the people of the respective States acquiesced in the reenactment of the principle as applied to the State of Texas, and it was proposed to acquiesce in its further application to the territory acquired by the United States from Mexico. But this proposition was successfully resisted by the representatives from the Northern States, who, regardless of the statute line, insisted upon applying restriction to the new territory generally, whether lying north or south of it, thereby repealing it as a legislative compromise, and, on the part of the North, persistently violating the compact, if compact there was.
Thereupon this enactment ceased to have binding virtue in any sense, whether as respects the North or the South, and so in effect it was treated on the occasion of the admission of the State of California and the organization of the Territories of New Mexico, Utah, and Washington.
Such was the state of this question when the time arrived for the organization of the Territories of Kansas and Nebraska. In the progress of constitutional inquiry and reflection it had now at length come to be seen clearly that Congress does not possess constitutional power to impose restrictions of this character upon any present or future State of the Union. In a long series of decisions, on the fullest argument and after the most deliberate consideration, the Supreme Court of the United States had finally determined this point in every form under which the question could arise, whether as affecting public or private rights—in questions of the public domain, of religion, of navigation, and of servitude.
The several States of the Union are by force of the Constitution coequal in domestic legislative power. Congress can not change a law of domestic relation in the State of Maine; no more can it in the State of Missouri. Any statute which proposes to do this is a mere nullity; it takes away no right, it confers none. If it remains on the statute book unrepealed, it remains there only as a monument of error and a beacon of warning to the legislator and the statesman. To repeal it will be only to remove imperfection from the statutes, without affecting, either in the sense of permission or of prohibition, the action of the States or of their citizens.
Still, when the nominal restriction of this nature, already a dead letter in law, was in terms repealed by the last Congress, in a clause of the act organizing the Territories of Kansas and Nebraska, that repeal was made the occasion of a widespread and dangerous agitation.
It was alleged that the original enactment being a compact of perpetual moral obligation, its repeal constituted an odious breach of faith.