This statement is so telling:
While I stand behind my firm belief that I have not violated any law, rule, or standard of conduct of the Senate…
And yet, Mr. Ensign (and I used that title quite loosely) apparently admitted that he had an affair with a married woman (while he was married, too, in case that wasn’t clear).
In other words, the standard of conduct of United States Senators absolutely includes having affairs with married people. I wonder if it is a requirement for membership, or just an accepted standard of conduct?