Many of the most magical scenes and beautiful times at America's First House begin right after the president pardons a huge turkey in the Rose Garden. The first lady dresses up, not too much, after our national day of giving thanks and stands in the driveway to receive a Christmas or Holiday tree that goes into the Blue Room because its the official one. Next, the family scampers off for a couple of days while hordes of pre-screened festive volunteers turn into White House elves with direction from the Ushers office and decorate more than a dozen trees, the State Rooms, the Truman Balcony placing garland, ribbons and bells everywhere. Pat Nixon resuscitated the use of wreaths as decorations for the Holidays.
Bo's curiosity is going to be quite hard to control. It's almost a sure bet that when President Obama lights the National Christmas tree, which is seen from The Washington Monument and the Truman Balcony, that it will be Sasha pushing the button.
(The stately tree arrives trussed up on a holiday style sleigh ususally led by horses, I think Clydesdales.)
The Cross Hall glammed up for the 2008 Red White & Blue theme. The door with the seal above it is the blue room where the majesty of the official tree reigns. Photo courtesy the White House
Update: Michelle's First White House Christmas Tree - it explains the selection process and shows other First Lady's Christmas trees.