Anything is possible, of course, and Ehud Barak, speaking at the Aspen Ideas Festival over the weekend, did not make it seem as if there is a great deal of time left before Israel has to decide whether or not to attack, but still -- an attack following a closed-door meeting with Romney would strike many people, including and especially the man who is still the American president, as odd and undermining. This doesn't mean, of course, that Israel couldn't strike Iran before the November election, it just means that an attack, should it happen (obligatory Goldblog caveat: I don't want it to happen) might be pushed off somewhat by Romney's coming Middle East intervention.
This article available online at:
http://www.theatlantic.com/international/archive/2012/07/romney-apparently-doesnt-want-israel-to-attack-iran-for-now/259387/