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Política·MIDTERMS

IA-03 House Election Winner

icon for IA-03 House Election Winner
Política·MIDTERMS

IA-03 House Election Winner

Polymarket

$10,713 Vol.

Polymarket

$10,713 Vol.

Sarah Trone Garriott (D)

$4,565 Vol.

77%

Zach Nunn (R)

$6,148 Vol.

24%

This market will resolve according to the party of the candidate who wins the IA-03 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).**Sarah Trone Garriott holds a strong lead in trader pricing for Iowa’s 3rd Congressional District because the seat remains one of the nation’s most competitive swing districts.** Incumbent Zach Nunn won by under two points in both 2022 and 2024, and forecasters rate the 2026 race a toss-up or lean Democratic. Trone Garriott, a state senator with a proven record winning Republican-leaning areas, has matched or exceeded Nunn in fundraising through mid-2026 while both candidates ran unopposed in June primaries. National midterm dynamics favoring the out-party, combined with the district’s narrow presidential margins, have reinforced market sentiment that the Democratic challenger is positioned to flip the seat on November 3.

This market will resolve according to the party of the candidate who wins the IA-03 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.

​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).This market will resolve according to the party of the candidate who wins the IA-03 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Volume
$10,713
Data de Término
4 nov 2026
Mercado Aberto
Dec 16, 2025, 11:59 AM ET

Resolver

0x2F5e3684c...
This market will resolve according to the party of the candidate who wins the IA-03 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).**Sarah Trone Garriott holds a strong lead in trader pricing for Iowa’s 3rd Congressional District because the seat remains one of the nation’s most competitive swing districts.** Incumbent Zach Nunn won by under two points in both 2022 and 2024, and forecasters rate the 2026 race a toss-up or lean Democratic. Trone Garriott, a state senator with a proven record winning Republican-leaning areas, has matched or exceeded Nunn in fundraising through mid-2026 while both candidates ran unopposed in June primaries. National midterm dynamics favoring the out-party, combined with the district’s narrow presidential margins, have reinforced market sentiment that the Democratic challenger is positioned to flip the seat on November 3.

This market will resolve according to the party of the candidate who wins the IA-03 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026.

​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources.

This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).This market will resolve according to the party of the candidate who wins the IA-03 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. ​​A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Volume
$10,713
Data de Término
4 nov 2026
Mercado Aberto
Dec 16, 2025, 11:59 AM ET

Resolver

0x2F5e3684c...

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Frequently Asked Questions

"IA-03 House Election Winner" is a prediction market on Polymarket with 2 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Sarah Trone Garriott (D)" at 77%, followed by "Zach Nunn (R)" at 24%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 77¢ implies that the market collectively assigns a 77% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "IA-03 House Election Winner" has generated $10.7K in total trading volume since the market launched on Dec 16, 2025. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "IA-03 House Election Winner," browse the 2 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "IA-03 House Election Winner" is "Sarah Trone Garriott (D)" at 77%, meaning the market assigns a 77% chance to that outcome. The next closest outcome is "Zach Nunn (R)" at 24%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "IA-03 House Election Winner" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.