Advisers for Obama and Romney trade jabs

(CNN) - A top aide to President Obama called former Massachusetts Gov. Mitt Romney a "political contortionist" at a breakfast forum Wednesday.

David Plouffe, who managed Obama's 2008 presidential bid, pointed out, "Gov. Romney has reminded us that he's a world-class political contortionist. He's kind of been all over the map on the president's leadership on the economy."