Voters in Missouri overwhelmingly passed Amendment 7 with 68.5% of the vote.

The amendment states only U.S. citizens 18 years or older can vote and prohibits the state or local governments from allowing non-citizen voting.

The amendment also prohibits ranked-choice voting by establishing each voter has one vote per issue or open seat; and requires plurality primary elections, where one winner advances to the general election.

The constitutional amendment will be effective 30 days after the election.