Yes Sanders should definitely start attacking progressive organizations and accuse them of being the enemy.
Might as well re-double down on Planned Parenthood being part of the establishment.
Let's villanize everyone who isn't in for Sanders
One side villanizes everyone who isn't for Sanders - the other patronizes everyone who is for Sanders
In the end whoever wins the primary is facing Cruz or Trump, so you shouldn't stress this much.
That link isn't denied by anyone; it's completely irrelevant. It does not change the fact that Sanders is smearing EMILY's List, accusing them of withdrawing support from prominent women politicians specifically for endorsing him when in fact they have done nothing of the sort.
How can you defend this? An undeniably huge part of Sanders' appeal is that he is above the fray and far removed from the type of politician he continuously tries to paint Clinton (and "the Establishment") as. Is this true or isn't it?
Would the same email be written if they had endorsed her ?
The links are relevant when raising cash.
Much like how DWS's links are ensuring her opponent is well financed.
There is a certain level of opportunism needed to write a fundraising email. There are certain emotional impulses that need to triggered in order for a person who opens it to take the next step.
It appears Sanders donor base does best when it's fighting the establishment. So the tactic they have employed the entire political season being employed in this instance has not surprised me.
Regarding this particular case it's bad optics to announce an initiative in March regarding increasing the numbers of Latinas in elected office. A month later endorse a white woman who doesn't appear to have much problems fundraising despite not doing well in the polls against a Latina they had previously endorsed. A Latina who appears to have trouble with the fundraising aspect of her campaign that the white woman doesn't seem to have.
I don't have a horse in that race so *shrug*