"Negotiations" of themselves are nothing. Here, all divorce cases require mediation and negotiate before trial. Does that avoid trial? Usually not. Does it make peace between the couple, usually not.
Negotiate what? The date for the elimination of Israel? From all reports in terms of details, the only goal of Obama is to assure that Iran does not set off a test nuclear weapon while he is still in office. Afterwards he and Democrats can blame it on the next president, the Republicans or whoever.
Personally, I favor the most crimpling sanctions possible to cut off funds, shatter Iran's economy and use this to support toppling the current government, plus all other means to do so.
If military action was necessary to take out a specific production facility? I would want the USA to provide every possible support to Israel to take out that target.
Finally, if the ONLY way to prevent Iran obtaining nuclear weapons was full scale war like Gulf War 1? I would support doing so.
Now it's your turn. If Germany had not declared war on the USA and the only way to stop the holocaust and stop German advancement into other countries was the USA going to war against Germany, would you want the USA to go to war against Germany or not?