Arizona Proposition 144, a legislatively referred constitutional amendment on the November 3, 2026 ballot, would explicitly bar noncitizens from registering or voting, require government-issued photo ID for all voting methods including mail ballots, and prohibit foreign nationals from contributing to influence state elections. Republican lawmakers advanced the measure along party lines earlier in 2026, and courts upheld its ballot placement despite challenges. A late-September Maricopa County investigation confirming eight noncitizens had voted due to prior registration system errors has reinforced arguments for stronger constitutional safeguards. Trader consensus at 65.5% Yes reflects these factors alongside broader state debates over election administration and access in the weeks before the vote.