Cash
Portfolio
TrendingMidtermsElectionsPoliticsSportsCultureCryptoCommoditiesClimateEconomicsMentionsFinanceTech & Science
PredictLive145AccountSocial
MARKETSPERPSLIVE145
Product
Kalshi ProPerpetual FuturesMarketsIncentive programInstitutionsAPI & developers
Company
AboutKalshi ResearchBlogCareersPolicy CenterBrand Kit
Help
Help CenterFAQFee scheduleTrading hoursRegulatoryTrust Center
© 2026 Kalshi Inc. · All rights reserved
PrivacyData Terms of ServiceTrading ProhibitionsFAQ for Finance Professionals
Trading on Kalshi involves risk and may not be appropriate for all. Members risk losing their cost to enter any transaction, including fees. You should carefully consider whether trading on Kalshi is appropriate for you in light of your investment experience and financial resources. Any trading decisions you make are solely your responsibility and at your own risk. Information is provided for convenience only on an "AS IS" basis. Past performance is not necessarily indicative of future results. Kalshi is subject to U.S. regulatory oversight by the CFTC.
Series Image
  1. House

IA-03 House winner?

Resolves by winning party
Chance
Sarah Trone Garriott
Democratic party
83%
▲ 3

Sarah Trone Garriott

Democratic party
83%
▲ 3
Zach Nunn
Republican party
17%
▼ 3

Zach Nunn

Republican party
17%
▼ 3
People are also trading
Series Image
Iowa 03 House General Election: voter turnout
Series Image
Iowa's 3rd District margin of victory
Series Image
Iowa Attorney General winner?
Series Image
Iowa State House winner?
Series Image
Iowa Governor-Senate combo
Series Image
IA-01 House winner?
Series Image
Iowa State Senate winner?
Series Image
Iowa Blue Wave Combo
Series Image
How many House seats will Democrats win in Iowa?
Series Image
Iowa: Sand's margin vs. Turek's margin?

More Iowa and 2026 Midterm Races

More Iowa races

Iowa Senate race: Hinson vs. TurekIowa Governor race: Sand vs. LahnIA-01 House race

Control of Congress

Which party will win the Senate?Which party will win the House?Congress balance of power

Top races

Texas Senate race: Talarico vs. PaxtonMaine Senate race: Jackson vs. CollinsMichigan Senate race: El-Sayed vs. RogersOhio Senate race: Brown vs. HustedSouth Carolina Senate race: Graham vs. AndrewsNew York Governor race: Hochul vs. BlakemanKansas Senate race: Marshall vs. HamiltonTexas Governor race: Abbott vs. HinojosaOhio Governor race: Acton vs. RamaswamyFlorida Governor race: Donalds vs. Jolly

More races

Massachusetts Governor race: Healey vs. MinogueWisconsin Governor race: Crowley vs. TiffanyMontana Senate race: Alme vs. BodnarArizona Governor race: Hobbs vs. BiggsPennsylvania Governor race: Shapiro vs. GarrityIdaho Senate race: Risch vs. AchillesMississippi Senate race: Hyde-Smith vs. ColomVermont Governor race: Scott vs. JanooMinnesota Governor race: Klobuchar vs. DemuthMichigan Governor race: Benson vs. James
IA-03 House winner?

Sarah Trone Garriott

Odds
87% chance
Max payout
Nov 3, 2027
$0
Garriott
Nov 3 ·D +7.8margin forecast
Nunn
$119,653 vol
Race Intel

IA-03 House Race 2026

ElectionNov 3, 2026General election
IncumbentZachary Nunn (R)Running for re-election

IA-03 House Candidates and Fundraising

CandidatePollsRaisedSmall Donors
  • Zach NunnR47.0%
    47.0%
    $4.9M
    2.9%
    $4.9M raised·2.9% small donors
  • Sarah Trone GarriottD43.0%
    43.0%
    $7.7M
    17%
    $7.7M raised·17% small donors
Polling averages · Fundraising: FEC filings · Small-donor ≤ $200. This does not include third party expenditures.

Past IA-03 Election Results

Past presidential elections

2024R +4.4%2020R +0.3%