Arizona voters will decide Proposition 144 on November 3, 2026, a legislatively referred constitutional amendment that would explicitly limit voter registration and voting to U.S. citizens, require government-issued photo ID for all ballots, ban foreign-national contributions to influence state elections, and allow ballots to be tabulated at polling locations. The Republican-led legislature approved the referral in June 2026 as part of efforts to entrench existing statutory safeguards. Recent Maricopa County investigations into flagged noncitizen registrations found only isolated cases tied to prior system errors, reinforcing arguments for stronger constitutional barriers. Traders assign the “yes” outcome an 81% implied probability, reflecting broad support for election-integrity provisions in a state where similar measures have historically performed well among voters prioritizing citizenship verification and campaign-finance restrictions.