Back in May, when Americans Elect, the group formed to put a bipartisan third party ticket on the 2012 presidential ballot, closed shop, everyone stopped talking about whether a third party candidate would enter the race in 2012 -- and the focus since then has been on Obama and Romney in a two person race.

This two person race has been a dead heat for months, and most people expect this to be one of the closest presidential races ever. (The latest Real Clear Politics poll average has Obama at 45.9% compared to Romney at 44.8%.)

But here's the thing -- the 2012 election isn't really a two person race. There's a third party candidate out there -- and he could derail either one of the two major party candidates' shot at the White House.

His name is Gary Johnson, the former governor of New Mexico and the Libertarian Party candidate.

If that seems doubtful, remember that Ralph Nader didn't