Question about Iowa/New Hampshire primaries:

[Hawaii Hiker]

There's been some talk about whomever finsihes 3rd. in the first couple primaries is likely done, etc...My question is: if the first couple races are ridiculously close, say these were the results:

Edwards 31.2
Obama 30.8
Clinton 30.6

would that make any difference, or is the third place finisher doomed, no matter how close it is?....I mean, even if someone is third after Iowa/NH but it's very close, could that candiate still get the nomination?...I would think EVERYTHING will be decided on 2/5/08 (Super Tuesday) regardless, as that's when many states (incl. CA & NY) are holding primaries....