Well, let's look at some of those options.
The first option is a better deal. This is what Netenyahu said earlier in his speech to the US Congress, and has been recently confirmed by a top French official.
“He basically said, if Congress votes this down, there will be some saber-rattling and some chaos for a year or two, but in the end nothing will change and Iran will come back to the table to negotiate again and that would be to our advantage,” Sanchez told me in an interview. “He thought if the Congress voted it down, that we could get a better deal.”http://www.bloombergview.com/articles/2015-07-30/top-french-official-contradicts-kerry-on-iran-deal
I agree with this assessment.
That leads us to the the second option. We could also increase our current sanctions, make it even tougher for them to do business with our allies and partners. This would cripple their economy if done right. That would take leadership, which I have yet to see out of this Whitehosue, but it's possible.
One last option, outside war, that is also available to us, and that's physical removal of their leadership. While we missed a great chance earlier to do so, we should still reserve this option before war.
Imagine, if you would, that we had a chance to remove Hitler and his crew prior to World War II, would we not do that now in hindsight? This is an option that could save lives, even if the predictability of the result wouldn't be guaranteed.
So, Mr. President, there are three options,
in between THIS deal, and 'war.'
America knows better - and our Representatives will hear it.