McCain will win North Carolina, but he'll have to spend a lot of time and money there.
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Please do.
The problem is that McCain will definitely not spend money in NC. If he's lost or really close to losing in NC, he's already lost the election elsewhere. So, in the event of an Obama landslide, McCain has to keep spending in must-win states like Virginia, Ohio, Michigan and Pennsylvania even if North Carolina and Florida are threatening to vote for Obama. (Thus, in landslide elections like 1984, the states which swing least strongly are the states that both candidates needed to win in order to win the EV while safe states on both sides swing more strongly.)