Bachmann leads Romney in Iowa.

"Bachmann received support from 25 percent of likely Iowa caucus goers in the poll, while Romney is backed by 21 percent."

Interestingly:

[T[here are virtually no gender differences on the head-to-head question. Specifically, women are no more or less likely to vote for a female candidate than men are.

Yes, but Romney's pretty.

Mitt Romney is considered to be the candidate best versed in business and the economy, yet his expertise in those areas is not currently giving him an advantage....

The one candidate who does substantially better on a certain issue set is Bachmann, who scores well with people who mention border security as a top concern....

Bachmann is currently enjoying the most widespread support in the state. She garners the most support in all of Iowa’s media markets except for Sioux City, where Romney leads. She performed the best in the Davenport media market, which is interesting because she has not campaigned there much, but neither has anyone else. The Davenport area was a Romney stronghold four years ago....

With Romney not participating in the straw poll, Bachmann’s lead over the rest of the field is substantial as she is ahead of Pawlenty and Cain by 16 points....