Imagine a substantive presidential contest: a general election pitting two people with major differences in their views and their visions for the future. Imagine the stimulation, the fireworks.Now consider what the establishment seems to prefer: a rematch of competing “moderate” dynasties. That is what appears to be in store. In an echo of 1992, another Bush versus another Clinton. And, if history is any guide, with Wall Street and the Military-Industrial Complex standing to benefit either way.To be certain, the Bushes and the Clintons differ in myriad substantive ways.