(AP Photo/David Karp). President Barack Obama departs Westchester Countyl Airport in New York accompanied by his wife Michelle and daughters Malia and Sasha Sunrday, Aug. 31, 2014, after attendending a wedding at Pocantico Hills
(AP Photo/Charles Dharapak). This photo taken Aug. 30, 2010, shows then Assistant White House Chef Sam Kass weighing sweet potatoes during the White House Kitchen Garden Fall Harvest with first lady Michelle Obama and students (not shown) in Washington.
(AP Photo/Pablo Martinez Monsivais). First lady Michelle Obama, right, and her daughters Sasha, left, and Malia, walk across the tarmac before boarding Air Force One prior to their departure from Andrews Air Force Base, Saturday, Aug. 30, 2014.
(AP Photo/Pablo Martinez Monsivais). First lady Michelle Obama, right, and President Barack Obama, center, walk to their vehicle after their arrival at Westchester County Airport, Saturday, Aug. 30, 2014.
(AP Photo/Jose Luis Magana). President Barack Obama, speaks with Col.