Not in a literal sense. If Romney loses he won't quit nor is he out of the race by any means. But if he can't win in his home state, where can he win? National Journal: The lesson after Iowa was supposed to be "keep the boot on the throat." Then again after South Carolina, Mitt Romney's team said it had learned that particular element of survival.So it's fair for campaign supporters to ask--and they are--why Romney was so docile in last Tuesday's elections, and then to grow less easy still as national polls on Monday showed Rick Santorum pulling into a tie, and a new one today reflecting more than half of Santorum's voters professing strong support, stacked against less than 40 percent of Romney voters.When will Romney make the down payment on the nomination?Part of that answer came today, with a new ad for the Detroit market  playing up Romney's Michigan ties, an opening of the wallet in a state that won't vote for 14 more days. Another part of the answer leans on how ...(Read Full Post)