Supposedly, it's the excitement of the "risk." Some people are drawn to the risk factor, which is probably most politicians. No doubt there are many liberal democrats and rinos doing the same thing right now. The media decides who they'll expose based on what/who affects their agenda, as we all know.
It’s also about whether the pol in question decides to knuckle under and do the walk of shame. The rats will say, ooh, I’m so bad, I’m so wrong, but then they’re like “resign? who said anything about resigning.” I realize Spitzer did, but he was kind of egregious and he had made enemies of about everybody there was to make enemies of. I think everyone in the country felt a little safer when he got out of there.