What are the conditions under which a person can be disqualified from voting in Illinois?

In Illinois, the conditions under which a person can be disqualified from voting include specific legal barriers outlined in the state’s election laws. A person who has been convicted of a felony may lose their voting rights during their imprisonment, but they can regain them upon completing their sentence, including parole and probation. Additionally, individuals deemed mentally incapacitated by a court may also be disqualified from voting. This reflects Illinois' legal framework that addresses the intersection of individual rights with public accountability.

The other options do not encompass disqualification in a comprehensive manner. While individuals under 18 cannot vote due to age restrictions, this is a standard eligibility requirement rather than a disqualification resulting from conduct. Failure to register to vote may prevent a person from voting but does not constitute a disqualification based on legal status or personal conduct. Lastly, not being a U.S. citizen indeed disqualifies someone, but this is also a general eligibility requirement, rooted in the fundamental right to vote, rather than a condition that arises from specific actions taken by the voter. Thus, focusing on the felony conviction and mental incapacity captures the nuance of disqualifying conditions as outlined in Illinois law.