The Kochs exemplify a new reality that strikes at the heart of America. The vast wealth that has accumulated at the top of the American economy is not itself the problem. The problem is that political power tends to rise to where the money is. And this combination of great wealth with political power leads to greater and greater accumulations and concentrations of both — tilting the playing field in favor of the Kochs and their ilk, and against the rest of us. America is not yet an oligarchy, but that’s where the Koch’s and a few other billionaires are taking us.