There have been just as many Dumycrats who believe that Iran should never be allowed to build nuclear weapons as there have been "neocons." I believe we should never contemplate sending troops against Iran, just as we never should have sent troops to Irak, Afghanistan and anywhere else. That is why we have "the bomb" and the means to deliver it where it would do the most good.
I also believe that Israel will do what they believe they need to do and we don't have to be directly involved.