I'd be interested to see if that question was posed by a reporter to any other US president, ever. Part of me thinks it wasn't ever a question before, so no one thought to ask. Part of me thinks they were just poking the bear for a soundbite.
Prior farewell comments on transition of power for comparison to Trump's (if he gives one):
Harry Truman:
"My fellow Americans:
I am happy to have this opportunity to talk to you once more before I leave the White House.
Next Tuesday, General Eisenhower will be inaugurated as President of the United States. A short time after the new President takes his oath of office, I will be on the train going back home to Independence, Missouri. I will once again be a plain, private citizen of this great Republic.
That is as it should be. Inauguration Day will be a great demonstration of our democratic process. I am glad to be a part of it-glad to wish General Eisenhower all possible success, as he begins his term--glad the whole world will have a chance to see how simply and how peacefully our American system transfers the vast power of the Presidency from my hands to his. It is a good object lesson in democracy. I am very proud of it. And I know you are, too.
During the last 2 months I have done my best to make this transfer an orderly one. I have talked with my successor on the affairs of the country, both foreign and domestic, and my Cabinet officers have talked with their successors. I want to say that General Eisenhower and his associates have cooperated fully in this effort. Such an orderly transfer from one party to another has never taken place before in our history. I think a real precedent has been set."
Dwight Eisenhower:
"Three days from now, after half a century in the service of our country, I shall lay down the responsibilities of office as, in traditional and solemn ceremony, the authority of the Presidency is vested in my successor. This evening I come to you with a message of leave-taking and farewell, and to share a few final thoughts with you, my countrymen. Like every other citizen, I wish the new President, and all who will labor with him, Godspeed. I pray that the coming years will be blessed with peace and prosperity for all."
Lyndon Johnson:
"President-elect Nixon, in the days ahead, is going to need your understanding, just as I did. And he is entitled to have it. I hope every Member will remember that the burdens he will bear as our President, will be borne for all of us. Each of us should try not to increase these burdens for the sake of narrow personal or partisan advantage."
Gerald Ford:
"The people have spoken; they have chosen a new President and a new Congress to work their will. I congratulate you—particularly the new Members—as sincerely as I did President-elect Carter....
During the period of my own service in this Capitol and in the White House, I can recall many orderly transitions of governmental responsibility—of problems as well as of position, of burdens as well as of power. The genius of the American system is that we do this so naturally and so normally. There are no soldiers marching in the street except in the Inaugural Parade; no public demonstrations except for some of the dancers at the Inaugural Ball; the opposition party doesn't go underground, but goes on functioning vigorously in the Congress and in the country; and our vigilant press goes right on probing and publishing our faults and our follies, confirming the wisdom of the framers of the first amendment.
Because of the transfer of authority in our form of government affects the state of the Union and of the world, I am happy to report to you that the current transition is proceeding very well. I was determined that it should; I wanted the new President to get off on an easier start than I had."
Jimmy Carter:
"During the next few days I will work hard to make sure that the transition from myself to the next President is a good one, that the American people are served well...
As I return home to the South, where I was born and raised, I look forward to the opportunity to reflect and further to assess, I hope with accuracy, the circumstances of our times. I intend to give our new President my support, and I intend to work as a citizen, as I've worked here in this office as President, for the values this Nation was founded to secure."
George HW Bush:
"...in 36 days we will have a new President. And I am confident, I am very confident that he will do his level-best to serve the cause that I have outlined here today. And he's going to have my support, and I'll stay out of his way. And I really mean that. But it is more important than my support, it is more important that he have your support. You are our future."
George W Bush:
"Five days from now, the world will witness the vitality of American democracy. In a tradition dating back to our founding, the presidency will pass to a successor chosen by you, the American people. Standing on the steps of the Capitol will be a man whose history reflects the enduring promise of our land. This is a moment of hope and pride for our whole nation. And I join all Americans in offering best wishes to President-Elect Obama, his wife Michelle, and their two beautiful girls."
Barack Obama:
"In 10 days, the world will witness a hallmark of our democracy...the peaceful transfer of power from one freely elected President to the next. I committed to President-elect Trump that my administration would ensure the smoothest possible transition, just as President Bush did for me. Because it's up to all of us to make sure our government can help us meet the many challenges we still face."