It will make no difference to his critics that they, the critics are wrong, on this one.
WASHINGTON – Critics of the nuclear deal that major world powers struck with Iran this week have largely based their case on a counterfactual. Had President Barack Obama imposed sanctions on Iran that were more aggressive -- “crippling,” even -- then, the theory goes, he would have extracted more favorable concessions.
This argument is meant, in part, to reinforce the idea that a third option existed between the two Obama outlined -- that is, between military confrontation and the agreement that was ultimately struck. But would it actually have been practical?
According to experts in the subject, including those who worked on Iran sanctions, the answer is basically no.
http://www.huffingtonpost.com/entry/obama-iran-sanctions_55a8099fe4b0c5f0322cba80?