Sasha and Malia Obama

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As President Obama begins his first days in office and we settle in to our new government, there are two young girls who are starting their own journeys in the White House. To help Sasha and Malia, the president's daughters, make the transition from Chicago to Washington, Jenna and Barbara Bush wrote the girls a heartfelt letter.

Along with advice about friendship, love and enjoying every moment, the Bush twins reminded Sasha and Malia to remember the integrity of their father. "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."