A very different and much larger side of federal predominance is to be seen in the history of the policy of internal improvements. I need not expound that policy here. It has been often enough mooted and long enough understood to need no explanation. Its practice is plain and its persistence unquestionable. But its bearings upon the status and the policies of the States are not always clearly seen or often distinctly pointed out. Its chief results, of course, have been that expansion of national functions which was necessarily involved in the application of national funds by national employees to the clearing of inland water-courses and the improvement of harbors, and the establishment of the very questionable precedent of expending in favored localities moneys raised by taxation which bears with equal incidence upon the people of all sections of the country; but these chief results by no means constitute the sum of its influence. Hardly less significant and real, for instance, are its moral effects in rendering state administrations less self-reliant and efficient, less prudent and thrifty, by accustoming them to accepting subsidies for internal improvements from the federal coffers; to depending upon the national revenues, rather than upon their own energy and enterprise, for means of developing those resources which it should be the special province of state administration to make available and profitable. There can, I suppose, be little doubt that it is due to the moral influences of this policy that the States are now turning to the common government for aid in such things as education. Expecting to be helped, they will not help themselves. Certain it is that there is more than one State which, though abundantly able to pay for an educational system of the greatest efficiency, fails to do so, and contents itself with imperfect temporary makeshifts because there are immense surpluses every year in the national treasury which, rumor and unauthorized promises say, may be distributed amongst the States in aid of education. If the federal government were more careful to keep apart from every strictly local scheme of improvement, this culpable and demoralizing state policy could scarcely live. States would cease to wish, because they would cease to hope, to be stipendiaries of the government of the Union, and would address themselves with diligence to their proper duties, with much benefit both to themselves and to the federal system. This is not saying that the policy of internal improvements was either avoidable, unconstitutional, or unwise, but only that it has been carried too far; and that, whether carried too far or not, it must in any case have been what it is now seen to be, a big weight in the federal scale of the balance.
Still other powers of the federal government, which have so grown beyond their first proportions as to have marred very seriously the symmetry of the "literary theory" of our federal system, have strengthened under the shadow of the jurisdiction of Congress over commerce and the maintenance of the postal service. For instance, the Supreme Court of the United States has declared that the powers granted to Congress by the Constitution to regulate commerce and to establish post-offices and post-roads "keep pace with the progress of the country and adapt themselves to new developments of times and circumstances. They extend from the horse with its rider to the stage-coach, from the sailing vessel to the steamer, from the coach and the steamer to the railroad, and from the railroad to the telegraph, as these new agencies are successively brought into use to meet the demands of increasing population and wealth. They are intended for the government of the business to which they relate, at all times and under all circumstances. As they were intrusted to the general government for the good of the nation, it is not only the right but the duty of Congress to see to it that the intercourse between the States and the transmission of intelligence are not obstructed or unnecessarily encumbered by state legislation."10 This emphatic decision was intended to sustain the right of a telegraph company chartered by one State to run its line along all post-roads in other States, without the consent of those States, and even against their will; but it is manifest that many other corporate companies might, under the sanction of this broad opinion, claim similar privileges in despite of state resistance, and that such decisions go far towards making state powers of incorporation of little worth as compared with federal powers of control.
Keeping pace, too, with this growth of federal activity, there has been from the first a steady and unmistakable growth of nationality of sentiment. It was, of course, the weight of war which finally and decisively disarranged the balance between state and federal powers; and it is obvious that many of the most striking manifestations of the tendency towards centralization have made themselves seen since the war. But the history of the war is only a record of the triumph of the principle of national sovereignty. The war was inevitable, because that principle grew apace; and the war ended as it did, because that principle had become predominant. Accepted at first simply because it was imperatively necessary, the union of form and of law had become a union of sentiment, and was destined to be a union of institutions. That sense of national unity and community of destiny which Hamilton had sought to foster, but which was feeble in his day of long distances and tardy inter-communication, when the nation's pulse was as slow as the stage-coach and the postman, had become strong enough to rule the continent when Webster died. The war between the States was the supreme and final struggle between those forces of disintegration which still remained in the blood of the body politic and those other forces of health, of union and amalgamation, which had been gradually building up that body in vigor and strength as the system passed from youth to maturity, and as its constitution hardened and ripened with advancing age.
The history of that trenchant policy of "reconstruction," which followed close upon the termination of the war, as at once its logical result and significant commentary, contains a vivid picture of the altered balances of the constitutional system which is a sort of exaggerated miniature, falling very little short of being a caricature, of previous constitutional tendencies and federal policies. The tide of federal aggression probably reached its highest shore in the legislation which put it into the power of the federal courts to punish a state judge for refusing, in the exercise of his official discretion, to impanel negroes in the juries of his court,11 and in those statutes which gave the federal courts jurisdiction over offenses against state laws by state officers.12 But that tide has often run very high, and, however fluctuating at times, has long been well-nigh irresistible by any dykes of constitutional state privilege; so that Judge Cooley can say without fear of contradiction that "The effectual checks upon the encroachments of federal upon state power must be looked for, not in state power of resistance, but in the choice of representatives, senators, and presidents holding just constitutional views, and in a federal supreme court with competent power to restrain all departments and all officers within the limits of their just authority, so far as their acts may become the subject of judicial cognizance."13
Indeed it is quite evident that if federal power be not altogether irresponsible, it is the federal judiciary which is the only effectual balance-wheel of the whole system. The federal judges hold in their hands the fate of state powers, and theirs is the only authority that can draw effective rein on the career of Congress. If their power, then, be not efficient, the time must seem sadly out of joint to those who hold to the "literary theory" of our Constitution. By the word of the Supreme Court must all legislation stand or fall, so long as law is respected. But, as I have already pointed out, there is at least one large province of jurisdiction upon which, though invited, and possibly privileged to appropriate it, the Supreme Court has, nevertheless, refused to enter, and by refusing to enter which it has given over all attempt