That would mean that 100% are more influenced by logic and principle than by more superficial concerns.
The American Idol type voters, the Emotional voters, and the Blue Jay Shiny Object voters are influenced by external manipulation rather than logic. They are the swing voters, and election results rest on their capricious voting behavior. They may call themselves Republican, Democrat or Independent, but what they have in common is that they are influenced by form over substance (e.g. - "Vote for the Cool Black Guy").
At the same time you want to run a campaign to discourage the other guy so he doesn't want to vote!
The idea that there's a mother load of swing voters easily persuaded by emotional appeals is MAGICAL THINKING.