The duty of defending so far as in him lies the integrity of the Constitution would indeed have resulted from the very nature of his office, but by thus expressing it in the official oath or affirmation, which in this respect differs from that of any other functionary, the founders of our Republic have attested their sense of its importance and have given to it a peculiar solemnity and force. Bound to the performance of this duty by the oath I have taken, by the strongest obligations of gratitude to the American people, and by the ties which unite my every earthly interest with the welfare and glory of my country, and perfectly convinced that the discussion and passage of the above-mentioned resolution were not only unauthorized by the Constitution, but in many respects repugnant to its provisions and subversive of the rights secured by it to other coordinate departments, I deem it an imperative duty to maintain the supremacy of that sacred instrument and the immunities of the department intrusted to my care by all means consistent with my own lawful powers, with the rights of others, and with the genius of our civil institutions. To this end I have caused this my solemn protest against the aforesaid proceedings to be placed on the files of the executive department and to be transmitted to the Senate.
It is alike due to the subject, the Senate, and the people that the views which I have taken of the proceedings referred to, and which compel me to regard them in the light that has been mentioned, should be exhibited at length, and with the freedom and firmness which are required by an occasion so unprecedented and peculiar.
Under the Constitution of the United States the powers and functions of the various departments of the Federal Government and their responsibilities for violation or neglect of duty are clearly defined or result by necessary inference. The legislative power is, subject to the qualified negative of the President, vested in the Congress of the United States, composed of the Senate and House of Representatives; the executive power is vested exclusively in the President, except that in the conclusion of treaties and in certain appointments to office he is to act with the advice and consent of the Senate; the judicial power is vested exclusively in the Supreme and other courts of the United States, except in cases of impeachment, for which purpose the accusatory power is vested in the House of Representatives and that of hearing and determining in the Senate. But although for the special purposes which have been mentioned there is an occasional intermixture of the powers of the different departments, yet with these exceptions each of the three great departments is independent of the others in its sphere of action, and when it deviates from that sphere is not responsible to the others further than it is expressly made so in the Constitution. In every other respect each of them is the coequal of the other two, and all are the servants of the American people, without power or right to control or censure each other in the service of their common superior, save only in the manner and to the degree which that superior has prescribed.
The responsibilities of the President are numerous and weighty. He is liable to impeachment for high crimes and misdemeanors, and on due conviction to removal from office and perpetual disqualification; and notwithstanding such conviction, he may also be indicted and punished according to law. He is also liable to the private action of any party who may have been injured by his illegal mandates or instructions in the same manner and to the same extent as the humblest functionary. In addition to the responsibilities which may thus be enforced by impeachment, criminal prosecution, or suit at law, he is also accountable at the bar of public opinion for every act of his Administration. Subject only to the restraints of truth and justice, the free people of the United States have the undoubted right, as individuals or collectively, orally or in writing, at such times and in such language and form as they may think proper, to discuss his official conduct and to express and promulgate their opinions concerning it. Indirectly also his conduct may come under review in either branch of the Legislature, or in the Senate when acting in its executive capacity, and so far as the executive or legislative proceedings of these bodies may require it, it may be exercised by them. These are believed to be the proper and only modes in which the President of the United States is to be held accountable for his official conduct.
Tested by these principles, the resolution of the Senate is wholly unauthorized by the Constitution, and in derogation of its entire spirit. It assumes that a single branch of the legislative department may for the purposes of a public censure, and without any view to legislation or impeachment, take up, consider, and decide upon the official acts of the Executive. But in no part of the Constitution is the President subjected to any such responsibility, and in no part of that instrument is any such power conferred on either branch of the Legislature.
The justice of these conclusions will be illustrated and confirmed by a brief analysis of the powers of the Senate and a comparison of their recent proceedings with those powers.
The high functions assigned by the Constitution to the Senate are in their nature either legislative, executive, or judicial. It is only in the exercise of its judicial powers, when sitting as a court for the trial of impeachments, that the Senate is expressly authorized and necessarily required to consider and decide upon the conduct of the President or any other public officer. Indirectly, however, as has already been suggested, it may frequently be called on to perform that office. Cases may occur in the course of its legislative or executive proceedings in which it may be indispensable to the proper exercise of its powers that it should inquire into and decide upon the conduct of the President or other public officers, and in every such case its constitutional right to do so is cheerfully conceded. But to authorize the Senate to enter on such a task in its legislative or executive capacity the inquiry must actually grow out of and tend to some legislative or executive action, and the decision, when expressed, must take the form of some appropriate legislative or executive act.
The resolution in question was introduced, discussed, and passed not as a joint but as a separate resolution. It asserts no legislative power, proposes no legislative action, and neither possesses the form nor any of the attributes of a legislative measure. It does not appear to have been entertained or passed with any view or expectation of its issuing in a law or joint resolution, or in the repeal of any law or joint resolution, or in any other legislative action.
Whilst wanting both the form and substance of a legislative measure, it is equally manifest that the resolution was not justified by any of the executive powers conferred on the Senate. These powers relate exclusively to the consideration of treaties and nominations to office, and they are exercised in secret session and with closed doors. This resolution does not apply to any treaty or nomination, and was passed in a public session.
Nor does this proceeding in any way belong to that class of incidental resolutions which relate to the officers of the Senate, to their Chamber and other appurtenances, or to subjects of order and other matters of the like nature, in all which either House may lawfully proceed without any cooperation with the other or with the President.