Doonesbury by Garry Trudeau for September 09, 2000
Transcript:
Cowboy hat/Bush Jr.: I just don't get it. Free money has always worked for the party before - why isn't it playing now? And why is everybody bothering me about the details! This election isn't about content! It's about character, and I've already said I won't have sex in the oval office! Isn't that what America wants? Someone who won't have sex in the oval office? Person: Try to get some sleep, governor.
I think the issue was less about sex in the oval office and more about who he was having the sex with (namely, not his wife).