HENRICO, Va. (AP) — They're on the fringes, but third-party candidates for president aren't letting up as Tuesday's election nears.
The Libertarian Party's Gary Johnson and Constitution Party's Virgil Goode are defiant in the face of talk they might only be spoilers in the race between Democratic President Barack Obama and Republican Mitt Romney.
Some polls show that ex-Republicans Johnson and Goode are primed to pull more votes than the difference between Obama and Romney in Colorado, New Mexico, Ohio and Virginia.
Experts caution that voters tend to migrate back to the main nominees in close races.
Goode and Johnson will be at a Sunday debate with the Green Party's Jill Stein and the Justice Party's Rocky Anderson.
The moderator is Ralph Nader — the last third-party presidential candidate to jolt a race.