"Looks like this has become a thread about MAV instead of Jim Jeffords."
That's the idea isn't it?
But surely the point of the Jeffords thing is that here you have a party machine that has scraped into power with a razor thin majority (and a very questionable one at that), this was achieved on the basis of a pledge to act moderately and inclusively. It then proceeds to act as if it had a landslide majority and a massive mandate.
In those circumstances it is hardly fair to criticise someone for sticking to the policies they were elected on, and dumping the political affiliation that is now being used to overturn those policies.