The 2026 Iowa Senate race for the open seat previously held by retiring Republican Joni Ernst remains competitive, with trader consensus favoring Republican nominee and U.S. Representative Ashley Hinson at 57.5 percent implied probability over Democratic state Representative Josh Turek at 42.5 percent. Iowa's Republican tilt, reinforced by Donald Trump's 13-point 2024 margin, supports Hinson's edge as the party's nominee, but recent Suffolk University polling showed Turek ahead by four points while Emerson College surveys indicated a narrow Hinson lead. Their October 7 debate highlighted contrasts on immigration enforcement, tariffs affecting farmers, Iran policy, healthcare costs, and legislative records, with Hinson emphasizing Turek's positions on taxes and border issues. Upcoming debates and voter priorities on the economy continue to shape assessments ahead of the November 3 election.