Voters in six states on Nov. 3 will decide whether to approve ballot measures that would amend their state constitutions or state law to make U.S. citizenship a requirement for voting.

The closely watched popular referenda reflect a push by President Donald Trump to crackdown on noncitizen voting based on unsubstantiated claims of widespread voter fraud.

Voting-rights advocates warn they also raise the potential of sidelining millions of eligible American voters.

"Rather than strengthening democracy, [the amendments are] a political maneuver designed to justify future rollbacks of voting rights," said Rashane Hamby with the ACLU of Kansas in testimony last year.

President Donald Trump gestures as he arrives to deliver remarks during a campaign rally, October 29, 2026 in Rock Hill, South Carolina.

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Federal and state laws already prohibit noncitizens from voting in any federal or statewide election, but advocates for the constitutional amendments say even more protection is…