Polk County supervisors unanimously approved redistricting maps for the board Wednesday. The vote ended months of wrangling with a new process that board chairperson Angela Connolly described as “pure hell.” Four of the county’s five supervisors currently live in two of the new districts, setting up the possibility of incumbent-on-incumbent challenges. But Tom Hockensmith said he may move to the new No. 4 district. If he did that, he wouldn’t have to face off against Connolly, a fellow Democrat who’s seeking reelection in the No. 5 district.