The president was asked about Mitt Romney's claim that "if Barack Obama gets re-elected, Iran will have a nuclear weapon." He responded first by noting his administration has imposed "crippling sanctions" against Iran that have isolated the nation in an "unprecedented" way and significantly damaged its government economically.
The president also criticized the GOP presidential candidates in general for the military conflict stances:
“Now, what's said on the campaign trail -- you know, those folks don't have a lot of responsibilities. They're not commander-in-chief," he said. "And when I see the casualness with which some of these folks talk about war, I'm reminded of the costs involved in war; I'm reminded of the decision that I have to make, in terms of sending our young men and women into battle, and the impacts that has on their lives, the impact it has on our national security, the impact it has on our economy.”