Arizona voters will decide Proposition 144 on November 3, 2026, a legislatively referred constitutional amendment that would enshrine citizenship requirements for voter registration and voting while mandating government-issued identification for all ballots, including mail voting, and prohibiting foreign national contributions to influence state elections. The measure, advanced by the Republican-controlled legislature, responds to documented cases such as the September 2026 Maricopa County investigation that identified eight noncitizens who voted due to longstanding Motor Vehicle Division registration errors. Trader pricing around 59.5% for passage reflects the measure’s alignment with existing statutory rules, broad public support for voter ID and citizenship verification in polling, and the absence of major recent countervailing developments that would alter its path through the electorate.