The letter, which is called "What I Want for You—and Every Child in America," gives readers a glimpse into the private life of our future leader.
He writes: "When I was a young man, I thought life was all about me—about how I'd make my way in the world, become successful and get the things I want. But then the two of you came into my world with all your curiosity and mischief and those smiles that never fail to fill my heart and light up my day. And suddenly, all my big plans for myself didn't seem so important anymore. I soon found that the greatest joy in my life was the joy I saw in yours. ... I love you more than you can ever know. And I am grateful every day for your patience, poise, grace and humor as we prepare to start our new life together in the White House. Love, Dad."
When Ali's husband, ABC News correspondent George Stephanopoulos, interviewed President-elect Obama, she says he brought Sasha and Malia along. "George said the relationship between them was so amazing," Ali says.
"It's a reflection on how they were raised," Gayle says. "They are so well behaved. They are not obnoxious. You can just tell they're normal little girls."