Incumbent Republican Zach Nunn and Democratic challenger Sarah Trone Garriott remain closely matched in Iowa's 3rd congressional district ahead of the November 3 general election. The seat's history of narrow victories, combined with recent polling averages showing single-digit or tied margins, sustains trader expectations for a tight outcome. Competitive fundraising, with both candidates raising millions, and overlapping messages on economic pressures and district priorities have limited separation. National midterm dynamics, where the opposition party typically gains ground, and Iowa's concurrent gubernatorial contest add uncertainty to turnout models. Late-cycle developments such as additional polling releases, coordinated campaign spending, or shifts in voter engagement among independents and suburban blocs could widen the margin in either direction.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · AtualizadoRepublican 3-6% 16.2%
Democrat 6-9% 13.9%
Democrat 3-6% 14%
Democrat 0-3% 14%

Democrata 18%+
1%

Democrata 15-18%
13%

Democrata 12-15%
5%

Democrat 9-12%
10%

Democrat 6-9%
14%

Democrat 3-6%
14%

Democrat 0-3%
14%

Republican 0-3%
8%

Republican 3-6%
16%

Republican 6%+
<1%
Republican 3-6% 16.2%
Democrat 6-9% 13.9%
Democrat 3-6% 14%
Democrat 0-3% 14%

Democrata 18%+
1%

Democrata 15-18%
13%

Democrata 12-15%
5%

Democrat 9-12%
10%

Democrat 6-9%
14%

Democrat 3-6%
14%

Democrat 0-3%
14%

Republican 0-3%
8%

Republican 3-6%
16%

Republican 6%+
<1%
This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
For purposes of this market, candidates nominated by the Democratic & Republican Parties will represent the options for "Democrat" and "Republican," respectively. Independent candidates will not represent options for either party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 IA-03 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Mercado Aberto: Aug 7, 2026, 4:32 PM ET
Resolver
0x69c47De9D...This market will resolve according to the margin of victory between the top two candidates in the specified election.
The "margin of victory" is defined as the absolute difference between the percentages of valid votes received by the first-place and second-place candidates. Percentages of the valid votes received by each candidate will be determined by dividing the total number of valid votes each of the top two candidates receives by the sum of all valid votes cast in the election.
For purposes of this market, candidates nominated by the Democratic & Republican Parties will represent the options for "Democrat" and "Republican," respectively. Independent candidates will not represent options for either party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party.
If the reported value falls exactly between two brackets, then this market will resolve to the higher margin bracket.
If two or more candidates tie for the most valid votes in this election, and the tie is between two candidates listed, this market will resolve to the lowest margin bracket for the candidate whose ballot-listed last name comes first in alphabetical order. If the tie is between a listed candidate and an unlisted candidate, this market will resolve to the lowest margin bracket for the listed candidate. If the tie is between two or more unlisted candidates, this market will resolve to "Other." If the listed candidate is represented in this market group as "Republican" or "Democrat" their ballot-listed last name will still be used for tiebreaking.
This market will resolve based on the official vote count once the count has been made official.
If the election results are not known definitively by June 30, 2027, 11:59 PM ET, this market will resolve to "Other".
If a recount is initiated before the vote total has been made official, the market will remain open until the recount is completed and the vote is made official.
The primary resolution source for this market will be the official results of the 2026 IA-03 House election as published by the state electoral authority responsible for certifying the results of the election; however, an overwhelming consensus of credible reporting may also be used.
Resolver
0x69c47De9D...Incumbent Republican Zach Nunn and Democratic challenger Sarah Trone Garriott remain closely matched in Iowa's 3rd congressional district ahead of the November 3 general election. The seat's history of narrow victories, combined with recent polling averages showing single-digit or tied margins, sustains trader expectations for a tight outcome. Competitive fundraising, with both candidates raising millions, and overlapping messages on economic pressures and district priorities have limited separation. National midterm dynamics, where the opposition party typically gains ground, and Iowa's concurrent gubernatorial contest add uncertainty to turnout models. Late-cycle developments such as additional polling releases, coordinated campaign spending, or shifts in voter engagement among independents and suburban blocs could widen the margin in either direction.
Resumo experimental gerado por IA com dados do Polymarket. Isto não é aconselhamento de trading e não tem qualquer papel na resolução deste mercado. · Atualizado
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