RICHARD ENGEL: There are several Iran hawks, people in this administration who have for years been speaking about, been advocating for a hard line against Iran, if not direct violence against Iran, and regime change in Iran. Rudy Giuliani has been one of them. John Bolton has been another. And they have spoken at gatherings sponsored by the MEK. The MEK used to be a terrorist organization. It was taken off the terrorist list. Iran certainly considers it a terrorist organization. You go to these speeches. Generally, the MEK gives you money to appear at the speeches, and you talk about regime change in Iran, and Bolton and Rudy Giuliani have both been deeply tied into the MEK, and both have said that they have not disclosed how much they've ever taken in financial remunerations from the group.