David Frum has an interesting op-ed in the NYT on the "vanishing Republican voter." Here's a taste:

Measured by money income, Washington qualifies as one the most unequal cities in the United States. Yet these two very different halves of a single city do share at least one thing. They vote the same way: Democratic. And in this, we are not alone. As a general rule, the more unequal a place is, the more Democratic; the more equal, the more Republican. The gap between rich and poor in Washington is nearly twice as great as in strongly Republican Charlotte, N.C.; and more than twice as great as in Republican-leaning Phoenix, Fort Worth, Indianapolis and Anaheim.

My fellow conservatives and Republicans have tended not to worry very much about the widening of income inequalities. As long as there exists equality of opportunity — as long as everybody's income is rising — who cares if some people get rich faster than others? Societies that try too hard to enforce equality deny important freedoms and inhibit wealth-creating enterprise. Individuals who worry overmuch about inequality can succumb to life-distorting envy and resentment.

All true! But something else is true, too: As America becomes more unequal, it also becomes less Republican. The trends we have dismissed are ending by devouring us.

The piece is filled with interesting observations, many of which should unsettle Frum's ideological compatriots on the Right. He concludes:

Equality in itself never can be or should be a conservative goal. But inequality taken to extremes can overwhelm conservative ideals of self-reliance, limited government and national unity. It can delegitimize commerce and business and invite destructive protectionism and overregulation. Inequality, in short, is a conservative issue too. We must develop a positive agenda that integrates the right kind of egalitarianism with our conservative principles of liberty. If we neglect this task and this opportunity, we won't lose just the northern Virginia suburbs. We will lose America.