The draft Colorado map

Yesterday, Colorado became the first state to publish a draft congressional map. PlanScore’s analysis of the map is below. It would be slightly skewed in a Republican direction, with an expected efficiency gap of 2.5%, an expected partisan bias of 4.0%, and an expected mean-median difference of 1.4%, all in Republicans’ favor. Note also that one district (the Seventh) is predicted to be barely Republican; if that district flipped then the map would be tilted modestly toward Democrats.

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