The twin daughters of former President George Bush, Jenna and Barbara, have some advice for Sasha and Malia Obama.
The Bush girls were 7 when their grandfather, former President George H.W. Bush, was inaugurated, and 20 when their dad took the oath. They did not spend those years with their eyes closed.
In a letter published in the Wall Street Journal, they write, "We also first saw the White House through the innocent, optimistic eyes of children.
"Although it's an honor and full of so many extraordinary opportunities, it isn't always easy being a member of the club you are about to join," they went on. "Our dad, like yours, is a man of great integrity and love; a man who always put us first. We still see him now as we did when we were 7: as our loving daddy.
"He is our father, not the sketch in a paper or part of a skit on TV. Many people will think they know him, but they have no idea how he felt the day you were born, the pride he felt on your first day of school, or how much you both love being his daughters. So here is our most important piece of advice: Remember who your dad really is."