The RAT plan is clear. While RAT cadidates and their editorial and "news" writing allies start calling for more civility in politics (they are singing in a chorus right now), their hit squads like Michael Moore and MoveOn.org are doing the dirty work, allowing the candidates to act above it all. It's just a variation of the "changing the tone in Washington" campaign that Bush used only with less honesty. It's not all that creative, but it is terribly disingenuous.
They do that with most concepts and words. The rats do or mean the precise opposite of what they say. Liberals have ads attacking President Bush as Hitler. When Bush indignantly exposes the Hitler image on his website, they howl and say he is wrong for using an image of Hitler - there by trying to cut off even his protestation of it's use.. It is evil - no other word can be substituted...
Maybe this is the sound-bite answer. "Anyone can see that Moore is just a character assassin for the democrats, doing the dirty work by spreading lies and innuendo while the dem politicians stay above the fray."