By Clarice Feldman

I am quite certain that this is not the protocol, and is most unbecoming a President of the United States.

Update (for the doubters who claim this was not a bow). Here is a video of the unmistakable bow: (hat tip: Michelle Malkin)

Update: See Miss Manners on the protocol. Americans do not bow to foreign monarchs because that act signified the monarch’s power over his subjects.
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Remember this little slip-up?