Incumbent Republican Dusty Johnson's retirement to pursue the gubernatorial nomination opened South Dakota's at-large House seat, yet trader consensus heavily favors the GOP due to the state's R+25 partisan lean and historical blowout victories exceeding 70%. Attorney General Marty Jackley's dominance in the April Mason-Dixon GOP primary poll (68% to James Bialota's 12%)—bolstered by a Trump endorsement, Casey Crabtree's withdrawal and backing, and over $1 million cash on hand—positions him as the likely nominee ahead of the June 2 primary. Democrats' presumptive frontrunner Nicole Gronli trails in fundraising amid a thin field, underscoring barriers in this safe Republican contest per forecasters. Late scandals, primary upheaval, or a national Democratic wave could challenge the outcome, though such shifts remain improbable.
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
$16,463 Vol.
$16,463 Vol.
Republican Party
92%
Democratic Party
8%
$16,463 Vol.
$16,463 Vol.
Republican Party
92%
Democratic Party
8%
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
Resolver
0x2F5e3684c...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/).
Resolver
0x2F5e3684c...Incumbent Republican Dusty Johnson's retirement to pursue the gubernatorial nomination opened South Dakota's at-large House seat, yet trader consensus heavily favors the GOP due to the state's R+25 partisan lean and historical blowout victories exceeding 70%. Attorney General Marty Jackley's dominance in the April Mason-Dixon GOP primary poll (68% to James Bialota's 12%)—bolstered by a Trump endorsement, Casey Crabtree's withdrawal and backing, and over $1 million cash on hand—positions him as the likely nominee ahead of the June 2 primary. Democrats' presumptive frontrunner Nicole Gronli trails in fundraising amid a thin field, underscoring barriers in this safe Republican contest per forecasters. Late scandals, primary upheaval, or a national Democratic wave could challenge the outcome, though such shifts remain improbable.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



Beware of external links.
Beware of external links.
Frequently Asked Questions