From Jonah Goldberg at National Review, Who Cares about National Unity?:

But more importantly, when you promise people something you can’t deliver you make them mad when you don’t deliver it. I’m convinced that one of the reasons the Democrats spend their time calling every inconvenient institution and voter racist is that they are embittered by Barack Obama’s spectacular failure to deliver on the promises he made and the even grander promises his biggest fans projected upon him. When you convince people they’re about to get everything they want and then you don’t follow through, two reactions are common. The first is a bitter and cynical nihilism that says nothing good can be accomplished. The second is an unconquerable conviction that evil people or forces thwarted the righteous from achieving something that was almost in their grasp. The globalists don’t want us to have nice things! The corporations keep the electric car down! The Jooooooooz bought off Congress! The Establishment pulled the plug! The Revolution was hijacked! The system was rigged! The founders were Stonecutters!