The question we need to ask is this: what are the consequences of the violent disruption Trump has visited on our delicately balanced political system? Look what he has done. He has dynamited the free-trade consensus that dominated Washington for so many years, he has done it with force, and in the process he has made himself the choice of many millions of Americans who have watched their economic situation deteriorate and heard their concerns brushed off by the Thomas Friedmans and the Bill Clintons of the world.