Is Jim Douglas now vulnerable?

[RIP Robert H Bork]

I doubt it.  Maybe if the Progressives and Democrats can unite, or find a way to drive him under 50%, but it's unlikely.  If he can survive 2006 and 2008, then he'll probably be fine.

I think so too. As to VT having gubernatorial elections every 2 years: yes they do, just like NH (they are in fact the only such states); their elections coincide both with presidential and midterm elections.