Perhaps that has something to do with people who aren't supposed to vote, who's demographics skew to the left side of the political spectrum:
- Foreign citizens with drivers licenses
- Permanent residents with drivers licenses
- Felons with drivers licenses
- Drivers under the voting age of majority
- Non-naturalized immigrants with drivers licenses.
ok, let's keep this simple: until having a drivers license is a requirement to vote in this country, let's not rely on driver's licenses as a requirement for voting. the DMV was not built to administer elections. that's what local election offices are for