But we don't know the entire question. What was between the words "to" and "ban"? And did the phrase "state legislation" refer to any particular bill? If so, what did that bill say?

EDIT: The Google found the original questionaire for me. Here it is: http://www.politico.com/static/PPM41_obamaquestionaire2.html The copy is illegible in places, but there do not appear to be any words between "to" and "ban".

So, the only question I have is whether he was referring to any specific state legislation. I'm sure we will get an opportunity to hear him explain that answer. Maybe he will say that he was young and foolish when he gave it.