The same people who bet big on Mr. Romney, and lost, are now trying to win by stealth — in the name of fiscal responsibility — the ground they failed to gain in an open election. […]

Consider, as a prime example, the push to raise the retirement age, the age of eligibility for Medicare, or both. This is only reasonable, we’re told — after all, life expectancy has risen, so shouldn’t we all retire later? In reality, however, it would be a hugely regressive policy change, imposing severe burdens on lower- and middle-income Americans while barely affecting the wealthy. Why? First of all, the increase in life expectancy is concentrated among the affluent; why should janitors have to retire later because lawyers are living longer? Second, both Social Security and Medicare are much more important, relative to income, to less-affluent Americans, so delaying their availability would be a far more severe hit to ordinary families than to the top 1 percent.

Or take a subtler example, the insistence that any revenue increases should come from limiting deductions rather than from higher tax rates. The key thing to realize here is that the math just doesn’t work; there is, in fact, no way limits on deductions can raise as much revenue from the wealthy as you can get simply by letting the relevant parts of the Bush-era tax cuts expire. So any proposal to avoid a rate increase is, whatever its proponents may say, a proposal that we let the 1 percent off the hook and shift the burden, one way or another, to the middle class or the poor. […]

So keep your eyes open as the fiscal game of chicken continues. It’s an uncomfortable but real truth that we are not all in this together; America’s top-down class warriors lost big in the election, but now they’re trying to use the pretense of concern about the deficit to snatch victory from the jaws of defeat. Let’s not let them pull it off.”

Paul Krugman: Class Wars of 2012