People lie under oath all the time, in every courthouse in the nation, every day. Anyone who really believes that people in court tell the truth most of the time, is probably gullible enough to buy that bridge. Divorce cases are the extreme, but it is fair to assume that ALL litigants lie to one degree or another. Big whoop de doo. Has been that way for centuries.
Politicians lie all the time.
We do not elect presidents or senators to be role models or the like for the widdle kiddies. Plus, by the time of the 1996 election, it should have been abundantly clear that Clinton was an adulterer. He rung up even bigger vote and electoral college totals than in '92. The people didn't give half a damn, rightly so. This type of voter ambivalence concerning personal morality is no recent phenomenon.