Topzle Updated: Wikipedia source
The 2026 United States Senate election in Iowa will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of Iowa. Primary elections will be held on June 2, 2026. Two-term Republican Joni Ernst, who was re-elected in 2020 with 51.8% of the vote, declined to seek reelection to a third term.
| Campaign finance reports as of September 30, 2025 | |||
| Candidate | Raised | Spent | Cash on hand |
| Jim Carlin (R) | $125,401 | $124,689 | $711 |
| Ashley Hinson (R) | $3,212,895 | $1,087,489 | $2,125,405 |
| Source: Federal Election Commission | |||
| Poll source | Date(s)administered | Samplesize | Marginof error | JoniErnst | SomeoneElse | Undecided |
| Victory Insights (R) | December 6–7, 2024 | 600 (LV) | – | 48% | 27% | 26% |
| Campaign finance reports as of September 30, 2025 | |||
| Candidate | Raised | Spent | Cash on hand |
| Nathan Sage (D) | $1,119,898 | $851,129 | $268,769 |
| Josh Turek (D) | $1,008,592 | $356,611 | $651,981 |
| Zach Wahls (D) | $1,303,295 | $718,251 | $585,045 |
| Source: Federal Election Commission | |||
| Campaign finance reports as of June 30, 2025 | |||
| Candidate | Raised | Spent | Cash on hand |
| Thomas Laehn (L) | $27,581 | $10,188 | $17,393 |
| Source: Federal Election Commission | |||
| Source | Ranking | As of |
| Inside Elections | Likely R | August 28, 2025 |
| The Cook Political Report | Likely R | October 14, 2025 |
| Sabato's Crystal Ball | Likely R | August 12, 2025 |
| Race To The WH | Lean R | September 4, 2025 |
| Poll source | Date(s)administered | Samplesize | Marginof error | JoniErnst (R) | JackieNorris (D) | Undecided |
| Public Policy Polling (D) | August 18–19, 2025 | 572 (V) | ± 4.1% | 45% | 42% | 13% |
| Poll source | Date(s)administered | Samplesize | Marginof error | JoniErnst (R) | NathanSage (D) | Undecided |
| Public Policy Polling (D) | August 18–19, 2025 | 572 (V) | ± 4.1% | 45% | 41% | 14% |
| Poll source | Date(s)administered | Samplesize | Marginof error | JoniErnst (R) | JoshTurek (D) | Undecided |
| Public Policy Polling (D) | August 18–19, 2025 | 572 (V) | ± 4.1% | 45% | 41% | 14% |
| Poll source | Date(s)administered | Samplesize | Marginof error | JoniErnst (R) | ZachWahls (D) | Undecided |
| Public Policy Polling (D) | August 18–19, 2025 | 572 (V) | ± 4.1% | 43% | 42% | 15% |
| Poll source | Date(s)administered | Samplesize | Marginof error | JoniErnst (R) | GenericDemocrat | Undecided |
| Public Policy Polling (D) | June 2–3, 2025 | 568 (V) | ± 4.1% | 45% | 43% | 12% |