Outside analyst presents five draft maps and simulation testing; staff to post maps for comment

Sep 22, 2025

An outside expert presented five zero-population-deviation maps described as compliant with Proposition 4 standards and explained simulation and partisan-symmetry testing. The committee agreed to post proposed maps and accept public comment in the court-ordered window.

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SALT LAKE CITY — The Legislative Redistricting Committee on Sept. 22 heard a technical presentation and demonstration of proposed maps from an outside analyst retained to test compliance with Proposition 4 and court guidance. Sean Trendy, an elections analyst and consultant, described how map simulations, compactness scores and measures of partisan symmetry were used to evaluate and compare options.

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