Elections Intelligence

Iowa U.S. Senate

OPEN SEATLean R to Toss-up

Joni Ernst (R) has held this seat since 2015 and is not running. Before that: Tom Harkin (D).

Josh Turek Open-seat nominee
43¢
Party market · checked 2:09 PM ETView on Kalshi ↗
58¢
Ashley Hinson Open-seat nominee

FTP Race Signal

FTP Race SignalA composite of market, polling and money. The prediction-market price anchors it; a polling average moves it: the last 30 days, or the three most recent pollsters when fewer polled. Polls paid for by a candidate, party or allied group move 2 points toward the other side and count half. When the three most recent independent pollsters each have the race within three points, it is a Toss-up unless the market is already decisive. Fundraising counts only at a five-to-one gap. Past results are context, not inputs. A rating changes only when the evidence clears the line.

The market is less sure of this seat than its history is: a 7-point Republican hold in 2020, priced at 58¢ today.

Toss-up
Safe DLikely DLean DToss-upLean RLikely RSafe R
Polling · Toss-upD+0.6 (average of 11 pollsters, Oct 6). Market · Toss-upR 58¢: traders' price for a Republican hold. Prior result · Lean RR+6.59 in 2020.

Market favors Hinson, but polls favor Turek.

Polling moved 6 points toward the Republican over 28 days. As of October 12.

Market

BandPRICEToss-up50¢ to 65¢Lean65¢ to 82¢Likely82¢ to 95¢Safe95¢ and above
R 58¢

Kalshi party market · checked 2:09 PM ET

View market on Kalshi ↗

Polling

BandPOINTSToss-up0 to 5Lean5 to 10Likely10 to 20Safe20 and above
D+0.6
Emerson College ↗ A+ Oct 5 to 6 · n=650 LV R+2 Independent
CNN/SSRS ↗ B Sep 29 to Oct 5 · n=801 LV R+2 Independent
Suffolk ↗ A Oct 1 to 4 · n=500 RV D+4.4 Independent
NYT/Siena ↗ A+ Sep 22 to Oct 1 · n=606 LV R+1 Independent
Rasmussen Reports ↗ Sep 28 to Sep 30 · n=1,048 LV D+4 Independent
Quantus ↗ B- Sep 28 to 29 · n=738 LV R+2 Independent
Fox News/Beacon ↗ A Sep 24 to 28 · n=1,008 LV D+2 Independent
InsiderAdvantage ↗ B+ Sep 22 to 23 · n=1,200 LV D+1 Independent
Marist College ↗ A Sep 17 to 20 · n=1,050 RV D+8 Independent
Trafalgar Group ↗ C+ Sep 16 to 18 · n=1,089 LV R+1.9 Independent
co/efficient ↗ B Sep 14 to 16 · n=831 LV R+4 R-leaning firm

Average of the latest poll from each of 11 pollsters in the last 30 days.

Earlier polls · 16
Cygnal ↗ A+ Sep 9 to 11 · n=500 LV D+0.2 Iowans for Tax Relief Foundation sponsor D+0.2 · Iowans for Tax Relief Foundation sponsor · counts as D+2.2 at half weight
Rasmussen Reports ↗ C Sep 8 to 10 · n=1,000 LV D+5 Independent
YouGov ↗ B+ Sep 3 to 8 · n=2,041 LV D+4 Independent
Emerson College ↗ A+ Aug 31 to Sep 1 · n=750 LV R+4.4 Independent
GSG ↗ B- Aug 27 to 31 · n=800 LV D+4 Turek sponsor D+4 · Turek sponsor · counts as D+2 at half weight
Wedgewood Polls ↗ Aug 27 to 29 · n=600 LV R+2 Independent
Abacus Data ↗ Aug 26 to 28 · n=323 LV D+9 Independent
Suffolk ↗ A Aug 19 to 22 · n=500 LV R+4.6 Independent
Emerson College ↗ A+ Aug 2 to 4 · n=712 LV R+2.5 Independent
NYT/Siena ↗ A+ Jun 15 to 27 · n=600 LV R+2 Independent
Fox News/Beacon ↗ A Jun 23 to 27 · n=1,003 RV D+4 Independent
Cygnal ↗ A+ Jun 16 to 19 · n=600 LV R+1.8 Iowans for Tax Relief Foundation sponsor R+1.8 · Iowans for Tax Relief Foundation sponsor · counts as D+0.2 at half weight
GSG ↗ B- Jun 8 to 11 · n=1,000 LV D+2 Turek sponsor D+2 · Turek sponsor · counts as EVEN at half weight
PPP ↗ B Jun 3 to 4 · n=557 RV EVEN Democratic Senatorial Campaign Committee sponsor EVEN · Democratic Senatorial Campaign Committee sponsor · counts as R+2 at half weight
Echelon ↗ A Apr 3 to 9 · n=377 LV D+1 NetChoice sponsor
GBAO ↗ B Mar 10 to 16 · n=1,200 LV R+4 Turek sponsor R+4 · Turek sponsor · counts as R+6 at half weight

Prior result

BandPOINTSToss-up0 to 5Lean5 to 12Likely12 to 25Safe25 and above
R+6.6

Joni Ernst (R)

51.7% to 45.1% · 2020 general election

def. Theresa Greenfield (D). Margin verified against retrieved official results.

Fundraising

BandRATIO TO 1Parity1 to 5Lean5 and above
1.6 to 1

Raised 2025 to 2026 · thru Jun 30

Josh Turek$6.28M ↗$2.36M cash
Ashley Hinson$10.22M ↗$6.75M cash

Total receipts in the 2025 to 2026 two-year cycle, through June 30, 2026; Hinson leads 1.6 to 1, short of the 5 to 1 at which fundraising takes a place on the spectrum.

The general election is on November 3, which is 22 days away.