Lindsay James leads the IA-02 House race at 72% in trader consensus because this open seat—vacated by Republican Ashley Hinson’s Senate bid—has tightened into a toss-up amid recent polling and rating shifts. An Emerson College survey from mid-October showed James at 50% and Joe Mitchell at 47%, while Cook Political Report moved the contest to toss-up in early October and Sabato’s Crystal Ball to lean Democratic, citing a challenging environment for Iowa Republicans. James has raised over $3.5 million with competitive cash on hand, supporting sustained advertising, while Mitchell trails slightly in totals. The district’s prior Republican tilt and Trump margin remain factors, but October debates and fundraising patterns have narrowed the gap, leading prediction markets to price James as the frontrunner ahead of the November 3 general election.