Factual error: In the scenes of the dinner honoring the President of France, they descend the stairs into the entrance hall and cross towards the State Dining Room. The remaining scenes of the dinner take place in the much larger East Room, completely on the other side of the White House, recognizable from the larger chandeliers and greater size of the room.
Factual error: When Sydney arrives at the Christmas Party, President Shepherd and A.J. MacInerney ask where she's been. She says she was stuck at Dupont Circle and they ask why she was on the Hill. But to get from Capitol Hill to the White House, one would not drive anywhere near Dupont Circle.