IA U.S. Senate 2026

Candidates

• Ashley Hinson Arenholz Republican
• Joni K Ernst Republican Incumbent
• Zach P Wahls Democrat
• Joshua Turek Democrat
• Nathan Sage Democrat
• James Carlin Republican

Campaign finance

Total receipts through 2026-03-31. Source: FEC (public domain).

• Ashley Hinson Arenholz $8.2M raised · $0 cash
• Joni K Ernst $7.0M raised · $0 cash
• Zach P Wahls $3.7M raised · $0 cash
• Joshua Turek $3.5M raised · $0 cash
• Nathan Sage $1.4M raised · $0 cash
• James Carlin $458K raised · $0 cash

Demographics

Iowa · 2022 ACS 5-year. Source: Census ACS.

Population

3,188,836

Median income

$70,763

Forecast

As of 2026-06-29T03:43:04.719070+00:00. Heuristic + Monte Carlo — methodology.

Current officeholders

Sitting members for this seat.

• Chuck Grassley Republican
• Joni Ernst Republican