A taxpayer's state of residence doesn't affect his federal taxes.
Most if not all states base residency on the concept of "domicile." You are a resident of the state in which your "domicile" or permanent home, is located. And a taxpayer can have only one "domicile" at a time. I know of no state that bases its definition of residency on the date of a drivers license or voter registration.
If a dispute were to arise as to a taxpayer's domicile, a state might require some proof. A utility bill usually carries more weight than a DL. When people move they can delay getting their new DL for months or even years, but they usually can't delay getting electricity.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
