South Dakota's at-large House seat has remained in Republican hands for decades due to the state's consistent partisan lean and voter registration advantage. Marty Jackley secured the Republican nomination after a June 2026 primary victory, positioning him as the clear frontrunner against Democrat Nicole Gronli and independent Jack Pittman. Recent polling shows Jackley maintaining double-digit leads, consistent with historical results in this district. Traders assign the Republican Party a 93.5% implied probability because structural factors such as turnout patterns and limited Democratic infrastructure in the state have proven durable. A late scandal involving the nominee, a national Democratic surge altering midterm dynamics, or unusually high independent turnout could narrow the margin, though such shifts remain low-probability events before November.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedSD-AL House Election Winner
SD-AL House Election Winner
$28,768 Vol.
$28,768 Vol.
Nov 3, 2026
Republican Party
94%
Democratic Party
4%
$28,768 Vol.
$28,768 Vol.
Nov 3, 2026
Republican Party
$21,079 Vol.
94%
Democratic Party
$7,688 Vol.
4%
This market will resolve according to the party of the candidate who wins the SD-AL 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/).South Dakota's at-large House seat has remained in Republican hands for decades due to the state's consistent partisan lean and voter registration advantage. Marty Jackley secured the Republican nomination after a June 2026 primary victory, positioning him as the clear frontrunner against Democrat Nicole Gronli and independent Jack Pittman. Recent polling shows Jackley maintaining double-digit leads, consistent with historical results in this district. Traders assign the Republican Party a 93.5% implied probability because structural factors such as turnout patterns and limited Democratic infrastructure in the state have proven durable. A late scandal involving the nominee, a national Democratic surge altering midterm dynamics, or unusually high independent turnout could narrow the margin, though such shifts remain low-probability events before November.
This market will resolve according to the party of the candidate who wins the SD-AL 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/).
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/).
Market Opened: Jan 28, 2026, 11:23 AM ET
Volume
$28,768End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:23 AM ETResolver
0x2F5e3684c...This market will resolve according to the party of the candidate who wins the SD-AL 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/).South Dakota's at-large House seat has remained in Republican hands for decades due to the state's consistent partisan lean and voter registration advantage. Marty Jackley secured the Republican nomination after a June 2026 primary victory, positioning him as the clear frontrunner against Democrat Nicole Gronli and independent Jack Pittman. Recent polling shows Jackley maintaining double-digit leads, consistent with historical results in this district. Traders assign the Republican Party a 93.5% implied probability because structural factors such as turnout patterns and limited Democratic infrastructure in the state have proven durable. A late scandal involving the nominee, a national Democratic surge altering midterm dynamics, or unusually high independent turnout could narrow the margin, though such shifts remain low-probability events before November.
This market will resolve according to the party of the candidate who wins the SD-AL 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/).
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
$28,768End Date
Nov 3, 2026Market Opened
Jan 28, 2026, 11:23 AM ETResolver
0x2F5e3684c...South Dakota's at-large House seat has remained in Republican hands for decades due to the state's consistent partisan lean and voter registration advantage. Marty Jackley secured the Republican nomination after a June 2026 primary victory, positioning him as the clear frontrunner against Democrat Nicole Gronli and independent Jack Pittman. Recent polling shows Jackley maintaining double-digit leads, consistent with historical results in this district. Traders assign the Republican Party a 93.5% implied probability because structural factors such as turnout patterns and limited Democratic infrastructure in the state have proven durable. A late scandal involving the nominee, a national Democratic surge altering midterm dynamics, or unusually high independent turnout could narrow the margin, though such shifts remain low-probability events before November.
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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