This tidbit reveals much about Paul's incompetence. The US did not enter NATO. The US forged NATO at the desperate plea of western Europe, who was prostrate and facing millions of Red Amy troops and tanks at their doorstep. And besides, NATO worked. I guess successfully deterring the USSR and later the whole Warsaw Pact and keeping the peace in Europe for forty years sucks if you're a crackpot isolationist.
One should think long and hard before letting lose the dogs of war "for no one knows where they will run."