There was rejoicing in Washington, but there may be less to this change than meets the eye.
A look at how the two roles compare.
If you donâ€™t like it, and you really believe that Iran is hell-bent on getting nuclear weapons, then your only remaining option is massive air strikes on Iran. Not even the Republican Party stalwarts are up for that, and Israel without American support simply couldnâ€™t do it on its own. Whatâ€™s left? Nothing but the deal.
Human rights concerns limited the governmentâ€™s own military aid.