Polls show John McCain and Mitt Romney in a photo-finish race in Florida. But there’s another way to know that we are now looking at a two-man race for the GOP nomination: attack emails. The emails are flying into my inbox, and none of them mention Giuliani or Huckabee. McCain is hitting Romney on Iraq and flip-flopping. Romney is hitting McCain on global warming and his lack of interest in economics. We’ll find out tomorrow which attacks worked.