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.