Former North Carolina senator John Edwards
Impressively he remained above the Clinton-Obama fray (no "look at me" antics) but swept in to best them while the media waited for the pair to duke it out. Calm and cool, he went after Clinton on (let's face it) character, and only occasionally seemed to be trying too hard. Hit both his Democratic and Republican targets with acute precision and impact. Appeared tough enough to perform well in a general election, with the kind of articulate passion he formerly demonstrated in the courtroom. Came across as presidential, optimistic and patriotic — essential for a winner.
—by Mark Halperin