According to the most recent polls out today, John McCain is poised to take all but a handful of states during tomorrow's Super Tuesday primaries.

Mitt Romney, his closest rival, has pulled even with the Arizona senator in California and is ahead in Massacusetts, Colorado, Utah, and Georgia. He is within striking distance (less than 8 pts) in Tennessee, New Jersey, and Alabama.

But McCain has big leads in the other 15 states. However, with most of the states offering proportional delegate apportionment, Romney's delegate count will be respectable.

The question is, how far he will be behind McCain in the delegate count come Wednesday?

Most analysts agree that for Romney to remain viable, he must be within 200-250 delgates of McCain after Super Tuesday. With a little more than 1,000 delegates left to be selected, Romney would then have to win around 2/3 of those remaining in order to overtake McCain.

If Romney finds himself farther behind than that, it is likely he will either drop out of the race or scale his campaign back significantly.