An excerpt from, "Trump questions need for NATO, outlines noninterventionist foreign policy" Washington Post, March 21, 2016:
"I do think it’s a different world today, and I don’t think we should be nation-building anymore," Trump said. "I think it’s proven not to work, and we have a different country than we did then. We have $19 trillion in debt. We’re sitting, probably, on a bubble. And it’s a bubble that if it breaks, it’s going to be very nasty. I just think we have to rebuild our country."
He added: I watched as we built schools in Iraq and they’re blown up. We build another one, we get blown up. We rebuild it three times and yet we can’t build a school in Brooklyn. We have no money for education because we can’t build in our own country. At what point do you say, 'Hey, we have to take care of ourselves?' So, I know the outer world exists and I’ll be very cognizant of that. But at the same time, our country is disintegrating, large sections of it, especially the inner cities."