“The large corporations, commonly called trusts, though organized in one State, always do business in many States, often doing very little business in the State where they are incorporated. There is utter lack of uniformity in the State laws about them; and as no State has any exclusive interest in or power over their acts, it has in practice proved impossible to get adequate regulation through State action. Therefore, in the interest of the whole people, the Nation should, without interfering with the power of the States in the matter itself, also assume power of supervision and regulation over all corporations doing an interstate business. This is especially true where the corporation derives a portion of its wealth from the existence of some monopolistic element or tendency in its business. There would be no hardship in such supervision; banks are subject to it, and in their case it is now accepted as a simple matter of course. Indeed, it is probable that supervision of corporations by the National Government need not go so far as is now the case with the supervision exercised over them by so conservative a State as Massachusetts, in order to produce excellent results. When the Constitution was adopted, at the end of the eighteenth century, no human wisdom could foretell the sweeping changes, alike in industrial and political conditions, which were to take place by the beginning of the twentieth century. At that time it was accepted as a matter of course that the several States were the proper authorities to regulate, so far as was then necessary, the comparatively insignificant and strictly localized corporate bodies of the day. The conditions are now wholly different and wholly different action is called for. I believe that a law can be framed which will enable the National Government to exercise control along the lines above indicated; profiting by the experience gained through the passage and administration of the Interstate-Commerce Act. If, however, the judgment of the Congress is that it lacks the constitutional power to pass such an act, then a constitutional amendment should be submitted to confer the power.”

1900s, First Annual Message to Congress (1901)