I THINK HER NAME IS MAGGIE NIXON

"Inside, the President asked Mrs. Nixon’s 12-year-old daughter for advice on the menu. “Maggie, what do you like?” he had asked. She responded: “I like horseback riding,” which drew laughter from both families. "

https:// vineyardgazette.com/news/2010/08/30/obamas-end-their-summer-vacation