Rich Lowry

Wisconsin Gov. Scott Walker belongs to an embattled minority that happens to be most of the population.

The root of this paradox is that Walker is an outlier among the political class in not having graduated from college, at the same time that a solid two-thirds of the country lacks a four-year degree.

Such is the domination of not just college grads, but specifically Ivy League grads, at the upper echelons of our government that the nation’s political competition can be seen as one big intramural battle at the Harvard or Yale Club.

And here comes Scott Walker, who dropped out of Marquette in...