I mean, he used to be a professor of constitutional law so he should know how the Constitution defines his job. In an interview with Diane Sawyer, however, he offered a job description which, well, I couldn’t find in that august document:
You know, there is a tendency in Washington to believe our job description, of elected officials, is to get reelected. That’s not our job description. . . . Our job description is to solve problems and to help people.
Couldn’t find that in Article II, §2 of the Constitution:
The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United 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, and he shall have Power to grant Reprieves and Pardons for Offences against the United States, except in Cases of Impeachment.
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, and which shall be established by Law: but the Congress may by Law vest the Appointment of such inferior Officers, as they think proper, in the President alone, in the Courts of Law, or in the Heads of Departments.
The President shall have Power to fill up all Vacancies that may happen during the Recess of the Senate, by granting Commissions which shall expire at the End of their next Session.
There’s a little more than that in §3, including taking care “that the Laws be faithfully executed”, so maybe he could contend that certain laws designate him as a problem solver and people helper, but the crux of his job is serving as Commander and Chief of the Armed Forces and as manager of the executive branch of the federal government.
(Yes, I know he was also referring to members of Congress, but Article I which offers their job description doesn’t include any reference to their being problem solvers and people helpers.)