Christina Bohannan holds a commanding lead in the Iowa 1st congressional district race due to her consistent polling edge over incumbent Mariannette Miller-Meeks and a series of forecaster rating upgrades that moved the contest from toss-up to lean Democratic in recent weeks. The rematch follows Miller-Meeks’s narrow 2024 victory by fewer than 1,000 votes, but current surveys show Bohannan ahead by margins of five to sixteen points amid voter focus on costs, tariffs, and healthcare. Both candidates have raised roughly nine million dollars, yet expert consensus and prediction-market pricing reflect the challenger’s stronger position heading into the November 3 election. A late surge in Republican turnout, unexpected economic shifts, or decisive developments in the final campaign days remain the main factors that could still alter the outcome.