The surprise victory of a "dark horse" in an early presidential test is a reminder that the 2008 election is under way, already producing surprises. Yet, there's a logic to the latest surprise. According to the March 28 issue of U.S. News , the current "hottie" among Republican presidential hopefuls the Iowa caucuses, after all, are just 33 months away is Haley Barbour, the governor of Mississippi. And that was before Barbour won the "March Madness" online playoffs. Those playoffs, free to anyone with an e-mail account, were conducted by a Missouri-based research firm. A total of 64 names everyone...