Incumbent Republican Jim Risch holds a commanding position in the 2026 Idaho Senate race due to the state's strong Republican lean, reflected in consistent double-digit margins for GOP candidates in recent federal elections. Risch secured his party's nomination with minimal opposition in the May primary and maintains a substantial fundraising advantage. The July withdrawal of Democratic nominee David Roth consolidated the main challenge behind independent Todd Achilles, a former state representative, but forecasters continue to rate the contest Solid or Safe Republican. Polling averages show Risch ahead, though some surveys indicate a closer head-to-head with Achilles. Late developments such as unexpected turnout shifts among independents, major scandals, or health-related issues could still alter the outcome before November 3.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedIdaho Senate Election Winner
Idaho Senate Election Winner
Jim Risch (R) 94.6%
Todd Achilles (I) 4.0%
Democrat 1.7%
$43,177 Vol.
$43,177 Vol.
Nov 3, 2026
Jim Risch (R)
95%
Todd Achilles (I)
4%
Democrat
2%
Jim Risch (R) 94.6%
Todd Achilles (I) 4.0%
Democrat 1.7%
$43,177 Vol.
$43,177 Vol.
Nov 3, 2026
Jim Risch (R)
$23,427 Vol.
95%
Todd Achilles (I)
$2,207 Vol.
4%
Democrat
$17,543 Vol.
2%
This market will resolve according to the winner of the 2026 midterm Idaho U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
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.
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.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.Incumbent Republican Jim Risch holds a commanding position in the 2026 Idaho Senate race due to the state's strong Republican lean, reflected in consistent double-digit margins for GOP candidates in recent federal elections. Risch secured his party's nomination with minimal opposition in the May primary and maintains a substantial fundraising advantage. The July withdrawal of Democratic nominee David Roth consolidated the main challenge behind independent Todd Achilles, a former state representative, but forecasters continue to rate the contest Solid or Safe Republican. Polling averages show Risch ahead, though some surveys indicate a closer head-to-head with Achilles. Late developments such as unexpected turnout shifts among independents, major scandals, or health-related issues could still alter the outcome before November 3.
This market will resolve according to the winner of the 2026 midterm Idaho U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
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.
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.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
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.
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.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Market Opened: Oct 13, 2025, 5:35 PM ET
Volume
$43,177End Date
Nov 3, 2026Market Opened
Oct 13, 2025, 5:35 PM ETResolver
0x2f5e3684c...This market will resolve according to the winner of the 2026 midterm Idaho U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
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.
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.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.Incumbent Republican Jim Risch holds a commanding position in the 2026 Idaho Senate race due to the state's strong Republican lean, reflected in consistent double-digit margins for GOP candidates in recent federal elections. Risch secured his party's nomination with minimal opposition in the May primary and maintains a substantial fundraising advantage. The July withdrawal of Democratic nominee David Roth consolidated the main challenge behind independent Todd Achilles, a former state representative, but forecasters continue to rate the contest Solid or Safe Republican. Polling averages show Risch ahead, though some surveys indicate a closer head-to-head with Achilles. Late developments such as unexpected turnout shifts among independents, major scandals, or health-related issues could still alter the outcome before November 3.
This market will resolve according to the winner of the 2026 midterm Idaho U.S. Senate election, inclusive of any run-offs.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
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.
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.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date.
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.
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.
The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Volume
$43,177End Date
Nov 3, 2026Market Opened
Oct 13, 2025, 5:35 PM ETResolver
0x2f5e3684c...Incumbent Republican Jim Risch holds a commanding position in the 2026 Idaho Senate race due to the state's strong Republican lean, reflected in consistent double-digit margins for GOP candidates in recent federal elections. Risch secured his party's nomination with minimal opposition in the May primary and maintains a substantial fundraising advantage. The July withdrawal of Democratic nominee David Roth consolidated the main challenge behind independent Todd Achilles, a former state representative, but forecasters continue to rate the contest Solid or Safe Republican. Polling averages show Risch ahead, though some surveys indicate a closer head-to-head with Achilles. Late developments such as unexpected turnout shifts among independents, major scandals, or health-related issues could still alter the outcome before November 3.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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