With sanction or without sanction, Iran was/is the most stable and secure country in the ME. You left the sanctions to achieve a deal with Iran, because you knew that if you had continued it, Iran would had had enough execute to go towards nuke, maybe after 2 or 3 months! we had enough enriched uranium for making several bombs! and if that happened , regret wouldn't help you!
Yep, just as I figured, Iran already has enough enriched Uranium to make bombs. It's possible they already have a bomb anyway. This 'deal' is a desperate attempt by the Obama administration to 'make nice' with Iran in order to hopefully slow Iran's march toward deliverable nuclear warheads. I believe this will only work with a strong American military presence and show of force.
Obama is passing off the prosecution of this agreement to the next administration. We'll see what happens. You can bet Iran does not want to see a Republican Presidency.