It's way too hard to unsubscribe from the DCCC e-mail list.
First you have to correctly find one link buried in 100 words of TINY TEXT at the bottom of their e-mail.

Well, no.
Click that link, and the DCCC sends you to the wrong page!

The DCCC is violating widely accepted standards for e-mail lists. For example, Gmail states:
A user must be able to unsubscribe from your mailing list through one of the following means:The DCCC is purposefully violating people's trust. This has got to change.A prominent link in the body of an email leading users to a page confirming his or her unsubscription (no input from the user, other than confirmation, should be required).
By replying to your email with an unsubscribe request.