BERMAN: Mr. Khan, Donald Trump is apparently watching right now. On Twitter, he just said, “Mr. Khan, who does not know me, viciously attacked me from the stage of the DNC and is now all over TV doing the same. Nice.” Given that you know he is watching now, is there a message you would like to send to him about this discussion?

KHAN: I really want to maintain mine and my family’s dignity. I spoke what was appropriate, and if he’s watching, just imagine, there was no need to comment the way he commented. That initiated this conversation. I again say we want to maintain our dignity, we want to maintain our family’s dignity, my son’s dignity and sacrifice. And he should listen to America — what America and the world is telling about the remarks about the lack of empathy. And that’s all I wish to convey to him — that a good leader has one trait. Earlier, I said empathy. … It is basic character, realizing, feeling the pains, the difficulties of the people that you wish to lead. And that is missing.