In the morning, after the Bushes and Obamas depart the executive mansion for the Capitol Hill swearing-in ceremony, moving trucks will roll up to the south side of the White House, Walters said.
The drivers put down their tailgates, allowing most of the White House's 93 staff members to begin unloading Obama family items, he said.
"Staff members all have been given very specific jobs on that day, almost down to the minute as to what their responsibilities are," Walters said.
The move is designed to be seamless, painless and invisible while millions of Washington visitors -- and millions more watching on TV -- follow the inauguration ceremonies and the parade that follows.
By about 5 p.m., before the Obamas move from the parade viewing stand to their new home, the presidential move must be complete.
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