i would bet it is at least 25% of the voting public. The number of people who answer 'undecided' weeks or a few months before presidential elections, or who say the debates will help them decide who to vote for, should be indicative of that. THESE are the people dirty tricks, such as the bush dui leak in 2000 or the attempted use of forged documents in 2004, or even the current time magazine cover (I saw it in the bookstore today, and was amazed they are so brazen with such a negative visual a week before elections), are directed at.
I've never trusted anyone who claims to be "undecided," especially this late in a campaign. It's not an indication of independent thought, but an indication of lack of convictions.
I would agree that's a good way to look at it. I can understand where people would be in the middle.. but I would hope that they would line up their issues on importance and then vote that way.. not vote for superficial reasons like we have discussed.