Thus and thus only, by the reciprocal guaranty of all the rights of every State against interference on the part of another, was the present form of government established by our fathers and transmitted to us, and by no other means is it possible for it to exist. If one State ceases to respect the rights of another and obtrusively intermeddles with its local interests; if a portion of the States assume to impose their institutions on the others or refuse to fulfill their obligations to them, we are no longer united, friendly States, but distracted, hostile ones, with little capacity left of common advantage, but abundant means of reciprocal injury and mischief. Practically it is immaterial whether aggressive interference between the States or deliberate refusal on the part of any one of them to comply with constitutional obligations arise from erroneous conviction or blind prejudice, whether it be perpetrated by direction or indirection. In either case it is full of threat and of danger to the durability of the Union. Placed in the office of Chief Magistrate as the executive agent of the whole country, bound to take care that the laws be faithfully executed, and specially enjoined by the Constitution to give information to Congress on the state of the Union, it would be palpable neglect of duty on my part to pass over a subject like this, which beyond all things at the present time vitally concerns individual and public security. It has been matter of painful regret to see States conspicuous for their services in rounding this Republic and equally sharing its advantages disregard their constitutional obligations to it. Although conscious of their inability to heal admitted and palpable social evils of their own, and which are completely within their jurisdiction, they engage in the offensive and hopeless undertaking of reforming the domestic institutions of other States, wholly beyond their control and authority. In the vain pursuit of ends by them entirely unattainable, and which they may not legally attempt to compass, they peril the very existence of the Constitution and all the countless benefits which it has conferred. While the people of the Southern States confine their attention to their own affairs, not presuming officiously to intermeddle with the social institutions of the Northern States, too many of the inhabitants of the latter are permanently organized in associations to inflict injury on the former by wrongful acts, which would be cause of war as between foreign powers and only fail to be such in our system because perpetrated under cover of the Union.