The Missouri Supreme Court won't reconsider a ruling allowing voters to decide on a ballot measure changing the way state legislative districts are drawn.

The decision Monday reaffirms a ruling last week by a state appeals court panel letting the so-called Clean Missouri initiative appear on the Nov. 6 ballot as Constitutional Amendment 1. Opponents had claimed the initiative violates the state constitution by addressing too many topics.

The proposal would create a new position of nonpartisan demographer to draw state House and Senate boundaries based on the 2020 Census using criteria intended to achieve "partisan fairness." The maps would be submitted for approval to bipartisan commissions, which would have less leeway than in the past to draft their own plans.

The initiative also would limit lobbyist gifts to lawmakers.

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