Oh, and it's not the first time he's used the 133-year-old Resolute Desk as a footstool:
Yep, he's a pResident to be proud of, isn't he?
As The Blaze points out, Both GW and Gerald Ford rested their feet on the Resolute desk:
But note than neither of them are actually stepping on the edge of the desk.
As I commented at The Blaze, 'it's the Resolute Desk, not a shoe-shine box'.