I happen to agree with scaeagles on this one. I can't imagine it's hard to find many many examples of democratic policy makers making idiotic nazi accusations (oh look
here's one right here). I don't think JW is goign to get very far with a, "Democrats never stoop to inflammatory rhetoric" line of argument, it doesn't take accurate reference citing to see it's not a particularly relevant road to travel.
I do think, on the other hand, Flippy made a rather salient point about the fact that at least the vast majority of criticism from the left, even when it wanders into the absurd and inflammatory, deals in actions actually taken, not theoretical outcomes of actions not taken, and not even being attempted to be taken.