Instead, it is on the right—to use the term loosely—where the Fringe Undecideds may be kingmakers, if the race is close enough. These are libertarian voters who find themselves unexcited about Romney but horrified of the possibility of a second term for Obama. Their man this year is Gary Johnson, a two-term Republican governor of New Mexico who left the GOP and became the presidential nominee of the Libertarian Party.

"It's better to vote for what you want and not get it than to vote for what you don't want and get it," wrote David Boaz, the executive vice president of the libertarian Cato Institute, in his response to the survey.