Ezra Klein:

There are two very different tax-policy conversations playing out in the Republican Party right now. In Washington, House Republicans are arguing with each other over how small of a temporary tax cut to give the middle class. Out on the primary trail, the Republican presidential candidates are arguing over how huge of a permanent tax cut to give the wealthy. … All of which leaves the Republican Party in an odd place: skeptical of a temporary tax cut for the middle class that carries a price tag in the low hundreds of billions of dollars and is fully paid for but apparently enthused over permanent tax cuts for the rich that cost trillions of dollars and aren’t paid for at all.

But it’s not odd at all, once you realize that the GOP is not now, and never has been (at least not since the 1970s) concerned about the deficit. All the fiscal posturing of the last couple of years has been about using the deficit as a club to smash the welfare state, with the secondary goal of frustrating any efforts on the part of the Obama administration to help the struggling economy.

The entire debate has been fake. If you don’t understand that, or can’t bring yourself to admit it, you’re missing the whole story.