Just about every pundit west of the River Indus has pointed out how Romney performed cataclysmically worse in last night’s batch of caucuses/primaries/“beauty contests” than he did in the same states in 2008. One thing I have not seen any of them mention — and pardon me if it seems obvious — is that despite blowing out McCain in Colorado in 2008, Mitt Romney did not in fact become the Republican nominee that year.