Biden has vowed not to let Iran develop a nuclear weapon on his watch, but it remains unclear what steps Iran would have to take in order for the Biden administration to respond with direct hits, given that Tehran has already been reported to have stockpiled near-weapons-grade uranium and to be bolstering its weaponization capabilities.

President Biden was presented scenario and response options on how to handle Iran should it make advances in developing a nuclear weapon, though the president has not signed off on hitting Tehran's program.