What Biden meant

BREAKING: Biden Unloads On Clinton, Obama, Edwards | TPMCafe

“I mean, you got the first mainstream African-American who is articulate and bright and clean and a nice-looking guy,” he said. “I mean, that’s a storybook, man.”

It's an attack on Jesse Jackson and Al Sharpton for various scandals in the past. That's what he's trying to do. What he winds up doing is look like a clueless old racist, which in many ways he is.