Voters for decades were conned into thinking they were noisome minorities whose best path to influence is to make peace with the mightier "center," which inevitably turns out to support military interventionism, fewer taxes for the rich, corporate deregulation and a ban on unrealistic "giveaway" proposals like free higher education. Those are the realistic, moderate, popular ideas, we're told.But it's a Wizard of Oz trick, just like American politics in general. There is no numerically massive center behind the curtain. What there is instead is a tiny island of wealthy donors, surrounded by a protective ring of for-sale major-party politicians (read: employees) whose job it is to castigate too-demanding voters and preach realism.