The more interesting question today isn't whether they'll continue, but which kinds of disagreement a political coalition can actually survive. Where they bicker is on old-school economic questions: taxes, tariffs, government spending, and the size of the federal beast. Those gaps are real, but they are also the kind of fiscal scuffles political movements have been negotiating for generations. None of this means the Republican coalition is indestructible or that cultural agreement automatically translates into electoral success. Of these two styles of disagreement, one offers a more hopeful model for the future of the country.