They'd be no Democrats left to lice up the place.
You're smart enough to know the Iranians don't have the capacity to create a fusion bomb. And 50 megatons was the Russian Tzar Bomba and cannot be placed on any rocket as it weighs 60,000lbs. All they can produce is a standard fission bomb with a limit of 200 kilotons, with years of research. They are working with uranium not plutonium.