Recent polling and forecaster ratings have shifted Iowa’s 1st District toward Democrat Christina Bohannan, who leads incumbent Republican Mariannette Miller-Meeks by roughly six to nine points in models updated through late October. Traders appear to view the race as a rematch where Bohannan closed to within hundreds of votes in 2024 and now benefits from stronger fundraising, organized turnout efforts, and voter focus on affordability, healthcare costs, and tariffs amid broader national headwinds for Republicans. The district’s partisan voting index and recent primary results have reinforced expectations of a Democratic edge. With Election Day on November 3, the current 92.5% implied probability for Bohannan reflects this polling consensus, though low-turnout surprises, independent candidate Michael Bridgford drawing votes unevenly, or late developments in the final days remain the primary paths that could narrow the margin.