First lady Michelle Obama appeared, Thursday, for the first time with the president this campaign season.

During a stop in Iowa, she teased him about what he'd been eating, showing the crowd another side of her husband.

"Did you have a fried Twinkie?" she asked him.

Jokes aside, Mrs. Obama knows women are a key voting bloc. She's been called the campaign's "secret weapon" because of her appeal to the group and her initiatives for health and family.

Janice Crouse, senior fellow at Concerned Women for America's Beverly LaHaye Institute, spoke more about the impact of women voters, on CBN Newswatch, Aug. 16.

Click play to watch. Crouse discusses Michelle Obama's latest campaign appearances as well as how GOP presidential contender Mitt Romney is responding to win over women voters.