The conception of the Separation of Powers doctrine advanced in Youngstown appears to have been an ad hoc discovery for the purpose of disposing of that particular case.
To sum up the argument to this point: War, the Roosevelt-Truman programs, and the doctrines of Constitutional Law on which they rest, and the conception of governmental function which they incorporate, have all tremendously strengthened forces which even earlier were making, slowly, to be sure, but with "the inevitability of gradualness," for the concentration of governmental power in the United States, first in the hands of the National Government; and, secondly, in the hands of the national Executive. In the Constitutional Law which the validation of the Roosevelt program has brought into full being, the two main structural elements of government in the United States in the past, the principle of Dual Federalism and the doctrine of the Separation of Powers, have undergone a radical and enfeebling transformation which war has, naturally, carried still further.
III
A Government of Laws and Not of Men
The earliest repositories of executive power in this country were the provincial governors. Being the point of tangency and hence of irritation between imperial policy and colonial particularism, these officers incurred a widespread unpopularity that was easily generalized into distrust of their office. So when Jefferson asserted in his Summary View, in 1774, that the King "is no more than the chief officer of the people, appointed by the laws and circumscribed with definite powers, to assist in working the great machine of government,"[35] he voiced a theory of executive power which, impudently as it flouted historical fact, had the support of the draftsmen of the first American constitutions. In most of these instruments the governors were elected annually by the legislative assemblies, were stripped of every prerogative of their predecessors in relation to legislation, and were forced to exercise the powers left them subject to the advice of a council chosen also by the assembly, and from its own members if it so desired. Finally, out of abundant caution the constitution of Virginia decreed that executive powers were to be exercised "according to the laws of" the Commonwealth, and that no power or prerogative was ever to be claimed "by virtue of any law, statute or custom of England." "Executive power", in short, was left entirely to legislative definition and was cut off from all resources of the common law and the precedents of English monarchy.
Fortunately or unfortunately, the earlier tradition of executive power was not to be exorcised so readily. Historically, this tradition traces to the fact that the royal prerogative was residual power, that the monarch was first on the ground, that the other powers of government were off-shoots from monarchical power. Moreover, when our forefathers turned to Roman history, as they intermittently did, it was borne in upon them that dictatorship had at one time been a normal feature of republican institutions.
And what history consecrated, doctrine illumined. In Chapter XI of John Locke's Second Treatise on Civil Government, from the pages of which much of the opening paragraphs of the Declaration of Independence comes, we read: "Absolute arbitrary power, or governing without settled standing laws, can neither of them consist with the ends of society and government".[36] In Chapter XIV of the same work we are told, nevertheless, that "prerogative" is the power "to act according to discretion without the prescription of the law and sometimes against it"; and that this power belongs to the executive, it being "impossible to foresee and so by laws to provide for all accidents and necessities that may concern the public, or make such laws as will do no harm if they are executed with inflexible rigor." Nor, continues Locke, is this "undoubted prerogative" ever questioned, "for the people are very seldom or never scrupulous or nice in the point" whilst the prerogative "is in any tolerable degree employed for the use it was meant, that is, for the good of the people."[37] A parallel ambivalence pervades both practice and adjudication under the Constitution from the beginning.
The opening clause of Article II of the Constitution reads: "The executive power shall be vested in a President of the United States of America". The primary purpose of this clause, which made its appearance late in the Convention and was never separately passed upon by it, was to settle the question whether the executive branch should be plural or single; a secondary purpose was to give the President a title. There is no hint in the published records that the clause was supposed to add cubits to the succeeding clauses which recite the President's powers and duties in detail.
For all that, the "executive power" clause was invoked as a grant of power in the first Congress to assemble under the Constitution, and outside Congress in 1793. On the former occasion Madison and others advanced the contention that the clause empowered the President to remove without the Senate's consent all executive officers, even those appointed with that consent, and in effect this view prevailed, to be ratified by the Supreme Court 137 years later in the famous Oregon Postmaster Case.[38]