There's one tactic John McCain hasn't exploited yet in his campaign ... the real "nuclear option" ... and Obama supporters should be very afraid.

It's a tactic proven to work, and is especially effective for last-minute, come-from-behind campaigning. In fact, it's been known to make a double-digit polling lead evaporate overnight.

Pollsters and pundits alike have been flustered before, and they can be again. McCain's strategists are well aware of this tactic's effectiveness, and they are surely awaiting just the right moment for its deployment for maximum effectiveness.

It worked for Hillary Clinton in New Hampshire, and it can work again. Soon, John McCain will cry.