Republican Ashley Hinson holds a modest edge in the open Iowa Senate race to replace retiring Sen. Joni Ernst, with traders assigning her a 55.5% implied probability compared to Democrat Josh Turek at 45.5%. Iowa’s Republican tilt, demonstrated by strong 2024 statewide results, combined with Hinson’s congressional record, Trump endorsement, and fundraising lead, supports her positioning. Turek, a state representative and Paralympic medalist, has shown competitiveness in polling averages near even and benefits from personal appeal and criticism of Hinson’s votes on spending and healthcare measures. Recent surveys through mid-September reflect a toss-up environment where small shifts in turnout or national conditions could decide the outcome on November 3.