President Obama has published a new book, Of Thee I Sing: A Letter to My Daughters. In the children's book, written to his daughters, Malia and Sasha, they take a walk through history, with First Dog Bo along for the ride.
The book is also stirring up a little controversy. He calls Chief Sitting Bull "A Sioux medicine man who healed broken hearts and broken promises." The appendix praises him for "His stunning victory in 1876 over Lieutenant Colonel George Armstrong Custer in the Battle of Little Bighorn."
But 258 American troops lost their lives at the battle, a scene depicted in the classic movie They Died with Their Boots On.
Proceeds from President Obama's book will benefit children of killed or disabled soldiers.