In another portion of the interview, which is scheduled to air Friday night on ABC's "20/20," Mrs. Obama says she tries not to tell her husband what to do because "he's got enough people in his ear."
"I try to stay out of his ear," she said.
Mrs. Obama says she and the president treat their living quarters on the second floor of the White House like a sanctuary, particularly when their girls are home. She says the girls like to talk about their day, which often has little to do with what's going on in the rest of the world.
"Everyone has to have their safe haven, a place of peace and calm and, you know, that's home for us," the first lady said.