Lyndon Johnson's influence in personal persuasion came not only from his personality but also from his power to help or harm the person he was addressing.

“So behind everything, when Johnson is talking to you and he puts his arm around you and he leans into you, it's not just the force of his personality that he's bringing to bear on you.”

“Behind that personality, you know he has the power to do things to you or for you, uh, that you better be aware of.”