Brody also said he thought the question was "out of bounds" and more "anti-evangelical Christian" than sexist. He questioned why no one asked former Utah Gov. Jon Huntsman about his Mormon faith during the same debate.
"The mainstream media and others are trying to wrap their arms around the concept they don't understand," Brody said. "Even though tens of millions not just evangelicals, but Christians around the country understand they are being put on the spot to explain."
Although Brody thought the question was unfair, Bachmann's spokeswoman Alice Stewart said she saw it "as an opportunity for her to clear up any concerns people may have had about that word. Clearly, people view that word differently. But for Michele and her husband that's the way they describe their relationship in terms of having a mutual respect for each other; and they do, they have a fantastic marriage, a very loving couple, and when they're using that term it's their expression of how they have a mutual respect and love for each other."
And Bachmann's Iowa campaign chairman Kent Sorenson agreed, also saying it was a "great opportunity."
"Anybody can ask any question they want. I don't think she's afraid to answer those questions. The audience sounded like they had a little different response," Sorenson said.
Bachmann's husband didn't shy away from commenting today at the Iowa State fair. "I think the fact that she is talking about two people who respect, honor, and communicate to each other about decisions just makes a lot of sense," Marcus Bachmann told ABC News. "I think the American people can see that that makes for a good marriage."
ABC News' Matthew Jaffe and Sarah Parnass contributed to this report.