Perhaps the clearest zinger Romney delivered was self-inflicted, with a little nudge from the President.
From NY Times live transcript of the 2nd 2012 US Presidential Debate.
"Please proceed" in this context meant 'walk into your own rhetorical buzz-saw'.
MR. ROMNEY: Yeah, I -- I certainly do. I certainly do. I -- I think it’s interesting the president just said something which is that on the day after the attack, he went in the Rose Garden and said that this was an act of terror. You said in the Rose Garden the day after the attack it was an act of terror. It was not a spontaneous demonstration.
PRESIDENT OBAMA: Please proceed.
MR. ROMNEY: Is that what you’re saying?
PRESIDENT OBAMA: Please proceed, Governor.
MR. ROMNEY: I -- I -- I want to make sure we get that for the record, because it took the president 14 days before he called the attack in Benghazi an act of terror.
Get the transcript.
MS. CROWLEY: It -- he did in fact, sir.
So let me -- let me call it an act of terrorism -- (inaudible) --
PRESIDENT OBAMA: Can you say that a little louder, Candy? (Laughter, applause.)
MS. CROWLEY: He did call it an act of terror. It did as well take -- it did as well take two weeks or so for the whole idea of there being a riot out there about this tape to come out. You are correct about that.