I finally found it.--The Jon Stewart deconstruction.
I thought you were talking about the one from the beginning of the campaign, I can't remember the exact details now, but I brought it up here on the Zone.
That's the one where when the Romney gang was called on it, and shown the full, unedited clip and they had the chutzpah to claim they had a right to edit it because that's what Obama "meant to say and really believed".
You do realize, if these guys get elected, we're fucked.