The following is a question I posed to a DUer in the Bernie Group ...

[Jackpine Radical]

7. If you'll pardon an intruder from "that other" group--

The division ends when the nomination outcome is clear.

There is no way in Hell I'd vote for any Republican, or do anything to jam up a Democratic victory in 2016.
Although I can most likely not claim a perfect record on this, in my mind, personal attacks on any of our candidates or their suporters are off-limits.

That said, I think it serves every candidate well to get their positions fully elaborated and explored, to be tested on the issues, to identify weakness and strengths, etc.

After all, this is still a sort of hothouse in which I presume there are underlying principles and perceptions of reality on which almost all of us stand in accord, in stark contrast to the lunatic, dirty and deceptive attacks that will be unleashed on our candidates, whomever they may be, by the rabid crazies and their well-heeled, cynical masters in the cesspit that passes for our opposition party.