To many it looks like President Obama and First Lady Michelle have a picture-perfect marriage. In a candid interview with New York Times writer Jodi Kantor, the first couple revealed things weren't always so perfect. Kantor joined Kiran Chetry on CNN’s “American Morning” Friday. Below is an edited transcript of the interview. Kiran Chetry: You … Continue reading Obamas' marriage had 'serious period of tension'