Five maps show how Democrat Catelin Drey flipped a Senate seat in deep-red Iowa Catelin Drey's margin of victory was a 20-point shift to the left from last year's elections in Iowa Senate District 1.

#Iowa #Democrats scored a big win on Aug. 26 as #CatelinDrey defeated #Republican #ChristopherProsch in a special election for #StateSenateDistrict1.
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