It has become conventional wisdom that Republicans are suffering an internal split that President Obama is successfully exploiting to neuter the Republican House. It is not true, however, that the Republican split is philosophical and fundamental. And that a hopelessly divided GOP is therefore headed for decline, perhaps irrelevance.
In fact, the split is tactical, not philosophical; short-term, not fundamental. And therefore quite solvable.
How do we know? Simple thought experiment: Imagine that we had a Republican president. Would the party be deeply divided over policy, at war with itself in Congress? Not at all. It would be rallying around something like the Paul Ryan budget that twice passed the House with near 100 percent GOP unanimity.