In the abstract, people claim that ethical behavior is important in politicians. But in a practical sense, do ethics really matter?
If you're for limited government (or gun rights, or pro-life, or opposed to gay marriage) and your candidate has done something ethically questionable (or even clearly unethical), would it really deter you from voting for that candidate over someone who favors a larger governmental role (or who opposes gun rights, or is pro-choice, or pro gay-marriage)?
Conversely, if you're for expansive government (or limited gun rights, or pro-choice, or support gay marriage) and your candidate has done something ethically questionable (or even clearly unethical), would it really deter you from voting for that candidate over someone who favors more limited government (or favors gun rights, or is pro-life, or opposes gay marriage)?
When it comes down to it, I don't think that ethics are useful beyond being a potential bludgeon against an opponent - and since I think that it's unlikely to swing most people's vote in any case, what it really boils down to is that ethics are only relevant to the extent that pointing out an opposing candidate's ethical flaws help bolster a voter's self-esteem for preferring what they view as the "right" candidate.
What do you think? I think it's a cynical point of view, but also a pragmatic one. I suppose scoundrels are nothing new, and ethical issues may still have influence in terms of swaying uncommitted and/or independent voters who may be less engaged in voting for a specific issue or political perspective, but I still find it discouraging that people are willing to overlook almost anything as long as they get the result they're hoping for.