Here are the scenarios:
Romney takes all the McCain 2008 states, plus NC VA FL IN CO. This yields 257 EVs. Then only one of the following must be won for a Romney victory:
1. OH(18) -or-
2. PA(20) -or-
3. MI(16) -or-
4. MN(10) + [NH(4) or IA(6) or NV(6)] -or-
5. WI(10) + [NH(4) or IA(6) or NV(6)] -or-
6. NV(6) + IA(6) (the tie scenario).
You forgot one:
7. NH(4) + IA(6) + NV(6)
8. MN(10) + WI(10) (probably the long shot)
You can have the (6a) where Romney gets the one EC from Maine.
This report is actually very depressing and I fear it may be close to the truth. My nightmare is that the surprise state outcomes that all expect will not be Romney picking off a state but instead will be Obama taking a state we are counting on like Virginia. Sorry for getting pessimistic but there it is. Let’s hope that even the Romney camp is happily surprised by what happens with turnout tomorrow.
Or my favorite: New Hampshire +1 vote in Maine + Washington DC?