Arguments against the pending nuclear deal with Iran -- from claiming that the deal is a capitulation to Iran to the notion that it is unacceptable to make a deal with a regime like that in Tehran -- have not sufficiently resonated with the public to kill the agreement. This has caused some disarray in the opposition camp. Indeed, if you are in that camp right now, it is reasonable to expect that the search is not for a new argument but for a game changing development: an event so powerful it shifts the momentum in Congress back to AIPAC, Netanyahu, Saudi Arabia and the other opponents of a nuclear deal. Arguably, a military confrontation between Israel and Hezbollah this summer could fit that bill.