"President Barack Obama and his daughters, Malia, left, and Sasha, watch on television as First Lady Michelle Obama begins her speech at the Democratic National Convention, in the Treaty Room of the White House, Tuesday night, Sept. 4, 2012."

Official White House Photo by Pete Souza.

"President Barack Obama and his daughters, Malia, left, and Sasha, watch on television as First Lady Michelle Obama begins her speech at the Democratic National Convention, in the Treaty Room of the White House, Tuesday night, Sept. 4, 2012."

Official White House Photo by Pete Souza.