“We are the 99 percent” is a great slogan. It correctly defines the issue as being the middle class versus the elite (as opposed to the middle class versus the poor). And it also gets past the common but wrong establishment notion that rising inequality is mainly about the well educated doing better than the less educated; the big winners in this new Gilded Age have been a handful of very wealthy people, not college graduates in general.

If anything, however, the 99 percent slogan aims too low. A large fraction of the top 1 percent’s gains have actually gone to an even smaller group, the top 0.1 percent — the richest one-thousandth of the population.

And while Democrats, by and large, want that super-elite to make at least some contribution to long-term deficit reduction, Republicans want to cut the super-elite’s taxes even as they slash Social Security, Medicare and Medicaid in the name of fiscal discipline.

Before I get to those policy disputes, here are a few numbers.

The recent Congressional Budget Office report on inequality didn’t look inside the top 1 percent, but an earlier report, which only went up to 2005, did. According to that report, between 1979 and 2005 the inflation-adjusted, after-tax income of Americans in the middle of the income distribution rose 21 percent. The equivalent number for the richest 0.1 percent rose 400 percent.