This is a Waterloo moment for Trump, the tea party and their alliance. They have been stopped in their tracks not only by Democratic opposition but because of a mutiny within their own ranks. Although never particularly liked or respected, it is now clear that they are no longer feared. The bankruptcy of their ideas and their incompetence have been exposed. Their momentum has been dissipated. Their rejection of political norms has itself been scorned. Our long national nightmare may finally be coming to an end.