I don't see anything wrong with what's mentioned in the dem strategy email. In fact, kudos to whoever came up with the strategy. Those 3 are extremely flawed candidates that would be a boon for the dems if either 3 succeeded in running against Hillary. I'm certain the gop had the same strategies also.
Look at whats happening now... The gop is cannibalizing itself because of that idiot & his idiot/deplorable base. It's a great plan.
To suggest Hillary's campaign or only the dems approach campaigns like this is just plain stupid. In fact, I would wager to bet republican emails are faaaar worse.
Kudos to whoever wrote the email for using crudgel. Great use of the word.