As Gingrich faces Romney in Florida, he calls 2012 the 'most important election of our lifetime.' Sometimes he compares its significance to the pre-Civil War era. GOP rivals like Santorum and key Democrats like Pelosi are also gasping about the stakes. Time to catch our breath.
Former front-runner Newt Gingrich has fallen behind going into the Iowa caucuses Tuesday, polls show. The reversal means Gingrich might change course in the days ahead.