Ok, seems like the affair was uncovered during an FBI investigation. The mistress was sending threatening emails to someone who happened to be a government volunteer. That kinda shines a light on the reason why this scandal is big enough to cause him to step down.

whomod said: I generally don't like it when people decide to play by the rules against people who don't play by the rules.
It tends to put you immediately at a disadvantage and IMO is a sign of true weakness.
This is true both in politics and on the internet."

Our Friendly Neighborhood Ray-man said: "no, the doctor's right. besides, he has seniority."