As for his 'plan,' it involved basically, approaching the USSR and suggesting that instead of fighting each other, the U.S. and USSR should team up against the evergrowing number of countries who were close to getting the bomb, a number which included Libya and Pakistan. "Most of those [pre-nuclear] countries are in one form or another dominated by the U.S. and the Soviet Union," Trump said in an interview. "So we should use our power of economic retaliation, and they use their powers of retaliation, and between the two of us, we will prevent the problem from happening."
So, basically, for those keeping score at home: we negotiate nothing, tag-team all the other countries who want nuclear weapons, and we'll be at peace forever. As for those countries, like France, who (in his words) is, "openly and blatantly selling nuclear technology?" Trump has a simple solution: bomb the hell out of them, which at the very least, demonstrates that he's gotten wiser with age because the last time he suggested nuking an entire country, he was only slightly bloodthirsty. That's progress, right?