No person except a natural born citizen, or a citizen of the United States, at the time of the adoption of this constitution, shall be eligible to the office of president; neither shall any person be eligible to that office who shall not have attained to the age of thirty-five years, and been fourteen years a resident within the United States. In case of the removal of the president from office, or of his death, resignation, or inability to discharge the powers and duties of the said office, the same shall devolve on the vice-president, and the Congress may by law provide for the case of removal, death, resignation or inability, both of the president and vice-president, declaring what officer shall then act as president, and such officer shall act accordingly, until the disability be removed, or the period for chusing another president arrive.[82] [82] "the period for chusing another president arrive" struck out and "a president be chosen" inserted by Madison. The president shall, at stated times, receive a fixed compensation for his services, which shall neither be encreased nor diminished during the period for which he shall have been elected. Before he enter on the execution of his office, he shall take the following oath or affirmation: "I ----, do solemnly swear (or affirm) that I will faithfully execute the office of president of the United States, and will to the best of my judgment and power, preserve, protect and defend the constitution of the United States." _Sect._ 2. The president shall be commander in chief of the army and navy of the United States, and of the militia of the several States: he may require the opinion, in writing, of the principal officer in each of the executive departments, upon any subject relating to the duties of their respective offices, when called into the actual service of the United States,[83] and he shall have power to grant reprieves and pardons for offences against the United States, except in cases of impeachment. [83] It so appears in the printed copy, but the clause "when called into the actual service of the United States" was intended to follow immediately after "militia of the several States." He shall have power, by and with the advice and consent of the senate, to make treaties, provided two-thirds of the senators present concur; and he shall nominate, and by and with the advice and consent of the senate, shall appoint ambassadors, other public ministers and consuls, judges of the supreme court, and all other officers of the United States, whose appointments are not herein otherwise provided for.