The party’s refusal to cooperate with Obama on any major issue, and its dogmatic insistence that Obamacare must be destroyed, is a sign of its intellectual rot. The GOP’s refusal to support the principle of universal health insurance makes it unique among major conservative parties anywhere in the world. And its extreme legislative tactics in the service of this principle are a defining fact of the Obama era. Even the sanest and most reasonable members of the party do not or will not question its central strategic and ideological imperatives. The transformation of the party of Dubya to the party of Trump is a fall, but the closer one looks at the party of Dubya, the shorter and more easily explainable it is.