Michelle Obama and her daughters, Sasha and Malia, are in China to promote family, a U.S.-China diplomacy, and they are doing it in style. Obama wore a leather-and-suede patchwork Derek Lam dress. She paired it with thigh high boots, and seemed to be dressed for slightly chilly weather. Sasha and Malia were equally as chic. The sisters wore complementary outfits, as they are known to do. Sasha wore a velvet red skirt, a black top and tights. Malia wore a shiny silver pleated skirt and a brown shirt. The Obamas were invited by another stylish lady, Chinese First Lady Peng...