Asshole Ben Nelson is no Democrat, yet he continues his charade that he is. He votes against so many things that are core Democratic principles, and now he's announced he's so against Obama's upcoming public-healthcare plan that he not only intends to vote against it but will marshal a group of "like-minded centrists" to battle it.
The man is in the pocket of big business, the banks (he voted against the bankruptcy bill) and insurance companies.
You're not a centrist when your take on healthcare flies in the face of what two-thirds of the country wants, and you're not a Democrat when you vote like Ben Nelson does.