Hmmm.
Not sure what to make of this.
I know if Romney did it, he would be accused here of being weak, reactionary, and waving the white flag over something that does not involve him.
Maybe Zero is trying to appear "Presidential" for once, and not look like a Chicago punk gangster.
I doubt it will work. He'll revert to his natural state within 72 hours. Also, his negative ads clearly are not working, this gives his campaign an excuse to stop the cash hemorrhage.