If, as appears likely today, major players from the GOP split off, it may be that to keep its soul, the Dems will need to be careful about who is allowed into its big tent.
The Koch brothers?
The dog whistle strategists?
The job hunters?
The corporate lobbyists?
A party that has worshiped opportunism and is about to be destroyed by it is going to lose a lot of its prime practitioners.
So what is the Soul of the Dems, and how is the line drawn?
I would say that that voter suppression, racial and gender hostility, and inability to admit error, particularly about Iraq, are the first absolute disqualifications.