The problem is that all the lines are being redrawn/augmented since IA is losing a seat, so ones that are unfavorable for one party or the other can cause a potential candidate to reconsider. IA Democrats are determined to claim the 2 GOP-held seats, as Leonard Boswell is running against Tom Latham and the former First Lady Christie Vilsack is running against Steve King. If I had to venture a guess at the moment, it’ll probably be a 2D-2R tie (barring a drastic change in the political climate).
Many thanks..I thought that might be it. KIndly ping me if you post more about tthe races.