“Most economists would consider this impossible because it could require taking more than $2 trillion a year out of the annual $4 trillion budget to pay off holders of the debt.”
Most? Only a fool would believe you can take $2T out of a 4T Budget. In 2015, defense was $602B. Social Security was $888B. Medicare was $546B. Total of these three programs Trump says he will not cut is $2.036T. IOW, Trump can pay for these three programs and fund his $2T program to pay off the debt. Nothing left for anything else. No funding for anything else.
Not to mention the 400 billion plus per year we spend servicing the debt in a ZIRP environment. Mr. Trump is just a very poorly informed candidate.
Cut spending to the bone-—or build the economy such that it pays the bills.