6 types of voters will decide the 2008 presidential election

usatoday.com — "Obama dominates the two most energized groups of voters, 44% of the electorate combined, who are focused on a range of issues and say they won't change their choice of candidate between now and November. McCain's strongholds are two groups of voters at the other end of the spectrum, 28% of the electorate in all, who are skeptical that..."