listen, what do you want to do? have the rest of the world ignore the sanctions? bomb iran, through the russian anti-aircraft defenses? nuke moscow?
you have no leverage. none. you couldn't order the ayatollah to spell his own name correctly.
the russians are now in control of iran. maybe that could have been prevented by bombing then ten or fifteen years ago, like the neo-cons wanted - at however high a cost it may have been. but it's too late, now. and you need to deal with this.