Story: Iowa elects Republican Joni Ernst to Senate over Bruce Braley »
Note: Butzier was killed in an Oct. 13 plane crash.
Story: House Republicans keep western Iowa red »
Story: Terry Branstad cruises to re-election as Iowa governor »
Data: Nebraska Secretary of State, Iowa Secretary of State, Douglas County, Sarpy County
Built by: Cody Winchester, Leah Becerra and Ben Vankat, Omaha World-Herald