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Politics·Primaries

Iowa Governor Republican Primary Winner

Market icon
Politics·Primaries

Iowa Governor Republican Primary Winner

Randy Feenstra 65%

Zach Lahn 17.8%

Adam Steen 17%

Brad Sherman 1.6%

Polymarket

$10,438 Vol.

Randy Feenstra 65%

Zach Lahn 17.8%

Adam Steen 17%

Brad Sherman 1.6%

Polymarket

$10,438 Vol.

Randy Feenstra

$805 Vol.

65%

Zach Lahn

$4,026 Vol.

18%

Adam Steen

$1,721 Vol.

17%

Brad Sherman

$2,938 Vol.

2%

Eddie Andrews

$949 Vol.

1%

This market will resolve according to the winner of the Republican Primary for Governor of Iowa, scheduled to take place on June 2, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off. If no 2026 Iowa Gubernatorial Republican Primary takes place, this market will resolve to “Other.” The resolution source for this market will be the first official announcement of the results from the Iowa Republican Party; however, an overwhelming consensus of credible reporting may suffice.U.S. Rep. Randy Feenstra holds trader consensus at 64.5% implied probability to win Iowa's Republican gubernatorial primary on June 2, driven by his congressional name recognition, former Gov. Terry Branstad's March 18 endorsement, and over 7,500 petition signatures submitted in early March, positioning him as the establishment front-runner post-ballot finalization. Challenger Zach Lahn trails at 17.8% on self-funding and outsider appeal as a farmer-businessman, while Adam Steen sits at 16.5% bolstered by The Family Leader's conservative endorsement around the same time; Brad Sherman and Eddie Andrews lag with minimal visibility despite qualifying amid petition challenges. Recent April developments, including Feenstra's youth coalition launch and school choice defense amid intra-party pushback, have sustained his edge absent public primary polls, with forums highlighting policy divides ahead of early voting.

This market will resolve according to the winner of the Republican Primary for Governor of Iowa, scheduled to take place on June 2, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off.

If no 2026 Iowa Gubernatorial Republican Primary takes place, this market will resolve to “Other.”

The resolution source for this market will be the first official announcement of the results from the Iowa Republican Party; however, an overwhelming consensus of credible reporting may suffice.
Volume
$10,438
End Date
Jun 2, 2026
Market Opened
Dec 9, 2025, 6:04 PM ET

Resolver

0x2F5e3684c...
This market will resolve according to the winner of the Republican Primary for Governor of Iowa, scheduled to take place on June 2, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off. If no 2026 Iowa Gubernatorial Republican Primary takes place, this market will resolve to “Other.” The resolution source for this market will be the first official announcement of the results from the Iowa Republican Party; however, an overwhelming consensus of credible reporting may suffice.
This market will resolve according to the winner of the Republican Primary for Governor of Iowa, scheduled to take place on June 2, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off. If no 2026 Iowa Gubernatorial Republican Primary takes place, this market will resolve to “Other.” The resolution source for this market will be the first official announcement of the results from the Iowa Republican Party; however, an overwhelming consensus of credible reporting may suffice.U.S. Rep. Randy Feenstra holds trader consensus at 64.5% implied probability to win Iowa's Republican gubernatorial primary on June 2, driven by his congressional name recognition, former Gov. Terry Branstad's March 18 endorsement, and over 7,500 petition signatures submitted in early March, positioning him as the establishment front-runner post-ballot finalization. Challenger Zach Lahn trails at 17.8% on self-funding and outsider appeal as a farmer-businessman, while Adam Steen sits at 16.5% bolstered by The Family Leader's conservative endorsement around the same time; Brad Sherman and Eddie Andrews lag with minimal visibility despite qualifying amid petition challenges. Recent April developments, including Feenstra's youth coalition launch and school choice defense amid intra-party pushback, have sustained his edge absent public primary polls, with forums highlighting policy divides ahead of early voting.

This market will resolve according to the winner of the Republican Primary for Governor of Iowa, scheduled to take place on June 2, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off.

If no 2026 Iowa Gubernatorial Republican Primary takes place, this market will resolve to “Other.”

The resolution source for this market will be the first official announcement of the results from the Iowa Republican Party; however, an overwhelming consensus of credible reporting may suffice.
Volume
$10,438
End Date
Jun 2, 2026
Market Opened
Dec 9, 2025, 6:04 PM ET

Resolver

0x2F5e3684c...
This market will resolve according to the winner of the Republican Primary for Governor of Iowa, scheduled to take place on June 2, 2026. Resolution will be based on the overall winner of the primary, including any potential second round or run-off. If no 2026 Iowa Gubernatorial Republican Primary takes place, this market will resolve to “Other.” The resolution source for this market will be the first official announcement of the results from the Iowa Republican Party; however, an overwhelming consensus of credible reporting may suffice.

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Frequently Asked Questions

"Iowa Governor Republican Primary Winner" is a prediction market on Polymarket with 5 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "Randy Feenstra" at 65%, followed by "Zach Lahn" at 18%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 65¢ implies that the market collectively assigns a 65% 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, "Iowa Governor Republican Primary Winner" has generated $10.4K in total trading volume since the market launched on Dec 9, 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 "Iowa Governor Republican Primary Winner," browse the 5 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 Governor Republican Primary Winner" is "Randy Feenstra" at 65%, meaning the market assigns a 65% chance to that outcome. The next closest outcome is "Zach Lahn" at 18%. 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 Governor Republican Primary 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.