WHICH IS WHY ALL MITT HAD TO SHOW WAS THAT HE'S VIABLE:

You can hammer Obama on health care. Mock his golf outings. Demand to see his birth certificate and Harvard transcript, and call him a European socialist bent on turning the American Dream into a Belgian nightmare. He'll throw his head back and laugh at you like a Bond villain.

But tell voters he's not the man America fell in love with in 2008 -- and pine, however disingenuously, about his unfulfilled potential -- and a shiver runs through his Chicago campaign headquarters.

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