What is Barack Obama's legacy?

Michelle Obama is the first African-American First Lady, making her a role model for many young women of color. She is also a passionate advocate for military families, and has been very active (along with Dr. Jill Biden, the vice president's wife) in trying to make their lives easier, especially those who are struggling financially due to the husband or wife being away serving overseas. Mrs. Obama has also gone all over the United States to promote healthy eating, as part of her fight against childhood obesity. She is also a conservationist who teaches about urban gardening and supports eating locally-grown fruits and vegetables.