State Constitution:
Article VII:§ 1. Qualifications of electors.
Every citizen 21 years of age, possessing the following qualifications, shall be entitled to vote at all elections subject, however, to such laws requiring and regulating the registration of electors as the General Assembly may enact.
1. He or she shall have been a citizen of the United States at least one month.
2. He or she shall have resided in the State 90 days immediately preceding the election.