Doonesbury by Garry Trudeau for April 22, 1974
Dan Rather: Ron, for just once in your life, will you give us a straight, truthful answer?! Ron Ziegler: Dan, I've told you before - for me to be honest would cripple the principle of confidentiality... Rather: What?! Ziegler: Dan, it's not just me as press secretary I'm thinking of... Rather: Who else are you thinking of, Ron? Ziegler: Future press secretaries! You see, Dan... Rather: I don't want to hear this.