Perhaps.
Although voting is a right, not a privilege, the DNC still requires that the "delegate selection process shall be open to all voters who wish to participate as Democrats." (reference: wfc2.wiredforchange.com/o/8787/images/DNC 2012 Delegate Selection Rules.pdf )
So how is showing ID to participate at the convention much different than showing ID to participate in the election?
Virginia requires non-photo ID to vote, and there is a fair number of things that qualify as ID:
- Virginia voter registration card (we get a new one every year, I believe)
- Social Security card
- Valid Virginia driver's license
- Any other identification card issued by a government agency of the Commonwealth, one of its political subdivisions, or the United States
- Employee identification card containing a photograph
- Any valid student ID card issued by any institution of higher education located in Virginia
- Copy of a current utility bill, bank statement, government check or paycheck that shows the name and address of the voter
- Concealed handgun permit
If you don't have one of these, you can still get a provisional ballot (thought I understand these have their own bunch of issues).
I would guess that a large number of folks here register to vote when applying for their driver's license or state ID card, so they would most likely have one of these methods of identification.

What is the point of rules that are not enforced?