Other polling has shown the race closer, too. The Des Moines Register poll showed Bachmann running an extremely close second to Romney last month. A recent American Research Group poll that showed Bachmann with only a slight lead over Romney in a field that did include those other names.
The Magellan numbers come on the heels of a survey by George W. Bush's old pollster that found Bachmann well ahead of Romney it what the poll called "the most attentive voters." That poll showed Bachmann ahead 32-18 among that group.
Bachmann's winning big with men (she's up 18% over Romney in the Magellan crosstabs), women (9%), seniors (10%), social conservatives (22%), fiscal conservatives (17%) and tea partiers (33%). Three percent in the Magellan survey said "other" and 24% said undecided. More women are undecided (30%) than support Bachmann (24%) and it's the same story with seniors (27% undecided, 26% support Bachmann.)
So there's room for the proverbial new candidate (*cough* Perry *cough*) to get in. But Bachmmentum seems to be the real deal for now.