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Politics·Rob Sand

Iowa Senate and Governor Combo

icon for Iowa Senate and Governor Combo
Politics·Rob Sand

Iowa Senate and Governor Combo

Dems sweep 40%

Dems win Gov, Reps win Senate 38%

Reps win Gov, Dems win Senate 38%

Reps sweep 37%

Polymarket
NEW

Dems sweep 40%

Dems win Gov, Reps win Senate 38%

Reps win Gov, Dems win Senate 38%

Reps sweep 37%

Polymarket
NEW

Dems sweep

$0 Vol.

40%

Dems win Gov, Reps win Senate

$0 Vol.

38%

Reps win Gov, Dems win Senate

$0 Vol.

38%

Reps sweep

$0 Vol.

37%

This market will resolve according to the outcome of both the Gubernatorial and United States Senate general elections in Iowa that are currently scheduled for November 3, 2026. A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other". For purposes of this market, a "sweep" is when a party wins both races. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification. Recent polling in Iowa's open 2026 Senate and gubernatorial races shows competitive contests that explain the market's even distribution across outcomes. Republican Ashley Hinson holds narrow leads or ties against Democrat Josh Turek in most Senate surveys, including Emerson College's early August results, while Democrat Rob Sand maintains modest edges over Republican Zach Lahn in gubernatorial polling. Both seats opened after incumbent retirements, with June primaries producing these nominees amid low undecided voters and divided independent support. Trader consensus assigns comparable probabilities to partisan sweeps and split results because the races remain closely contested in a state with a Republican tilt but shifting dynamics on economic and turnout factors. No single dominant catalyst has emerged to consolidate probabilities toward one combination ahead of November.

This market will resolve according to the outcome of both the Gubernatorial and United States Senate general elections in Iowa that are currently scheduled for November 3, 2026.

A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other".

For purposes of this market, a "sweep" is when a party wins both races.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Volume
$0
End Date
Nov 3, 2026
Market Opened
Aug 11, 2026, 11:06 AM ET

Resolver

0x69c47De9D...
This market will resolve according to the outcome of both the Gubernatorial and United States Senate general elections in Iowa that are currently scheduled for November 3, 2026. A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other". For purposes of this market, a "sweep" is when a party wins both races. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
This market will resolve according to the outcome of both the Gubernatorial and United States Senate general elections in Iowa that are currently scheduled for November 3, 2026. A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other". For purposes of this market, a "sweep" is when a party wins both races. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification. Recent polling in Iowa's open 2026 Senate and gubernatorial races shows competitive contests that explain the market's even distribution across outcomes. Republican Ashley Hinson holds narrow leads or ties against Democrat Josh Turek in most Senate surveys, including Emerson College's early August results, while Democrat Rob Sand maintains modest edges over Republican Zach Lahn in gubernatorial polling. Both seats opened after incumbent retirements, with June primaries producing these nominees amid low undecided voters and divided independent support. Trader consensus assigns comparable probabilities to partisan sweeps and split results because the races remain closely contested in a state with a Republican tilt but shifting dynamics on economic and turnout factors. No single dominant catalyst has emerged to consolidate probabilities toward one combination ahead of November.

This market will resolve according to the outcome of both the Gubernatorial and United States Senate general elections in Iowa that are currently scheduled for November 3, 2026.

A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party.

If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other".

For purposes of this market, a "sweep" is when a party wins both races.

The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.
Volume
$0
End Date
Nov 3, 2026
Market Opened
Aug 11, 2026, 11:06 AM ET

Resolver

0x69c47De9D...
This market will resolve according to the outcome of both the Gubernatorial and United States Senate general elections in Iowa that are currently scheduled for November 3, 2026. A candidate will be considered to represent a party by their ballot-listed affiliation or if they are the nominee of that party. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. If the results of these elections are not conclusively known by March 31, 2027, or if an independent or third-party candidate wins one of these elections, this market will resolve to "Other". For purposes of this market, a "sweep" is when a party wins both races. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources have conclusively called the relevant Senate and Gubernatorial elections. If all three sources do not achieve consensus in calling the relevant races for this market, it will resolve based on the official certification.

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Frequently Asked Questions

"Iowa Senate and Governor Combo" is a prediction market on Polymarket with 4 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Dems sweep" at 40%, followed by "Dems win Gov, Reps win Senate" at 39%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 40¢ implies that the market collectively assigns a 40% 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.

"Iowa Senate and Governor Combo" is a newly created market on Polymarket, launched on Aug 11, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Iowa Senate and Governor Combo," browse the 4 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 "Iowa Senate and Governor Combo" is "Dems sweep" at 40%, meaning the market assigns a 40% chance to that outcome. The next closest outcome is "Dems win Gov, Reps win Senate" at 39%. 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 "Iowa Senate and Governor Combo" 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.