Obama a sure thing?

Interesting article at the Huffington Post about Obama's strategy to win the election this November.

Even if the guy is wrong here (and I don't think he is) and white, working-class Democrats are voting for Clinton because of race, will enough of them vote for Obama to give him the victory in November?

Also, I think McCain represents the best hope for the Republicans when it comes to winning over independent voters. I'm curious to see who he picks for his VP candidate (Obama too for that matter).