FILE - In this Nov. 28, 2014 file photo, first lady Michelle Obama, left, follows her daughters Malia Obama, center, and Sasha Obama, as they walk with their dogs, Bo and Sunny as they arrive to welcome the Official White House Christmas Tree to the White House in Washington. Every president since Harry S. Truman has owned a pooch while in office. Which leads to the big question: Is there a dog in the White House future? No definitive answer from Trump yet. (AP Photo/Susan Walsh, File)