Iowa U.S. Senate S-IA-2026 · Class 2 · Regular cycle

Open in research → Editorial as of Apr 22 · FEC through Mar 31
General 2026-11-03
R Primary 2026-06-02
Filing Deadline 2026-03-13 (held)
Cook Political Report
Likely R
As of Apr 13, 2026
Sabato's Crystal Ball
Likely R
As of Mar 4, 2026
Polymarket
R 61¢
D 40¢
Refreshed today
R+6
Cook PVI
Incumbent
Joni Ernst
Republican · Retiring
▸ Watch

Ernst announced retirement September 2, 2025, after criticism over Medicaid comments. Cook: Likely R (Apr 13, 2026). Sabato: Likely R (Mar 4, 2026). R+6 PVI.

Top contenders

Jim Carlin
Republican
● Candidate

Republican candidate for the Iowa U.S. Senate seat.

FEC Receipts — Cycle Total
$293,966
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00249/
Ashley Hinson
Republican
● Candidate

Republican candidate for the Iowa U.S. Senate seat. Federal filing not yet detected in current FEC bulk extract.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
Zach Wahls
Democrat
● Candidate

Democrat candidate for the Iowa U.S. Senate seat.

FEC Receipts — Cycle Total
$3,167,671
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00272/
12-wk spend

Republicans

Joni K Ernst
Republican
● Filed with FEC

Federally registered candidate for the Iowa U.S. Senate seat. No editorial profile available.

FEC Receipts — Cycle Total
$1,997,586
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S4IA00129/
Jim Carlin
Republican
● Candidate

Republican candidate for the Iowa U.S. Senate seat.

FEC Receipts — Cycle Total
$293,966
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00249/
Ashley Hinson
Republican
● Candidate

Republican candidate for the Iowa U.S. Senate seat. Federal filing not yet detected in current FEC bulk extract.

FEC Receipts — Cycle Total
Not yet filed with FEC
Source: FEC bulk data · through 2026-03-31 (Q1 2026)
Ashley Hinson Arenholz
Republican
● Filed with FEC

Federally registered candidate for the Iowa U.S. Senate seat. No editorial profile available.

FEC Receipts — Cycle Total
$7,267,266
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00314/
12-wk spend

Democrats

Zach Wahls
Democrat
● Candidate

Democrat candidate for the Iowa U.S. Senate seat.

FEC Receipts — Cycle Total
$3,167,671
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00272/
12-wk spend
Josh Turek
Democrat
● Candidate

Democrat candidate for the Iowa U.S. Senate seat.

FEC Receipts — Cycle Total
$2,808,701
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00298/
12-wk spend
Nathan Sage
Democrat
● Filed with FEC

Federally registered candidate for the Iowa U.S. Senate seat. No editorial profile available.

FEC Receipts — Cycle Total
$1,432,562
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00256/
12-wk spend

Other parties

Thomas Laehn
Libertarian
● Candidate

Libertarian candidate for the Iowa U.S. Senate seat.

FEC Receipts — Cycle Total
$20,423
Through Mar 31, 2026
Source: FEC bulk data · api.open.fec.gov/v1/candidate/S6IA00181/
12-wk spend

5 additional FEC filers excluded as long-tail (no editorial listing, not the seat incumbent, and under $1M raised). They remain in the database and can be surfaced via the FEC API directly.