President Bartlet: I'm confident in your loyalty to me. I'm confident in your love for me. If you lie to protect me. If you lie just once. If you lie just a little. If you lie 'cause you can't stand what's happening to me and the people making it happen. If you ever, ever lie, you're finished with me. You understand?
Charlie: Yes, sir.
President Bartlet: Say you understand.
Charlie: I understand, sir.