I'm no Paulistinian, BUT
What President or unsuccessful candidate in the last 24 years would have used military force to stop Iranian nuclear capability (bombing doesn't count)?
Don't know, I wouldn't support sending troops. Why should we when we have excellent hardware (with excellent software) just waiting to be field tested.
Taking out one government complex, barracks, military installation, airfield at a time, would probably sent them a pretty clear message.
If that doesn't work...take out a rioting crowd of geehawdees.
The old "Big Stick" trick.