Beau Biden, the son of the Democratic vice president, went "off script," as he called it, to fire a shot a Republican Mitt Romney but hit Gov. Bev Perdue at the same time.

At the N.C. Democratic Party's annual fundraising dinner, Biden mentioned that Romney didn't seek a second term as Massachusetts governor, suggesting his failed economic policies hurt him. "I've never met a successful politician who didn't run again," said Biden, the Delaware attorney general.

The crowd collectively groaned. Biden's line sounded similar to what Republicans say about another governor who isn't seeking re-election: North Carolina Democrat Bev Perdue.

Ouch.

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