The deal President Obama cut with Iran's rulers provided them with billions of dollars and a "patient pathway" to the acquisition of nuclear weapons and the means to deliver them to targets anywhere on the planet.

President Trump withdrew from that deal and, in its place, initiated a "maximum pressure" campaign of economic sanctions intended to change the regime's behavior — if not change the regime itself.

Richard Goldberg, who recently served as a director on the National Security Council (NSC) and is now back at FDD as a senior advisor, joins host Cliff May to discuss what the Trump administration's policies and strategies on Iran have — and have not — achieved so far.