I guess you are finding this funny in the same way Hillary Clinton calls this the fun season.  Negative campaigning is when someone attacks an opponent with things that are not true and scandalous.  Simply asking questions of a candidate that deal with something that may be in contradiction to what they have said or claimed while campaigning is fair game.  

It is clear that the Skinner campaign wants to have it both ways.  They want to say anything they want without ever backing it up.  Isn't that the reason people are trying to defeat Knollenberg?