Another Uncredited Joke

I really would like to provide a link and credit to the magazine who published this joke, recently circulating by email. Alas. Enjoy!

Three politicians in a bar were discussing where they liked their wives to be during sex.
The Republican said, "On the bottom, of course, as God intended."
The Libertarian said, "I see nothing wrong with the woman being on top."
The Democrat said, "I prefer my wife to be out of town."