He essentially writes that Clinton and McCain are of the past and Obama is of the future. From this I thought of how both the left and the right are stuck in battles and world views of the past; Obama has captured the hopes of those who look to the future. My quick diagram of this is
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The vertical lines are the parties of the past, stuck in the past; the horizontal line is the party of the future moving forward. Another way to look at it is the right is the party of globalization of business but of anti-globalization of politics (we know best) and the left is the party of anti-globalization of business but of globalization of politics. They are also stuck in the polarization of ideas many Americans would rather not take a firm stand on: gun control, abortion, immigration, and so on.
I think that Obama will win in a landslide because he represents the future. He will win because he will get more people voting than ever. He will win because he has built a strong organization of average people rather than of Washington insiders. He will win because he is a better speaker and thinker. Finally, he will win because people do want change.