Wisconsin's 4th congressional district remains a solidly Democratic seat anchored in Milwaukee County, with a partisan voting index of D+26 and consistent double-digit margins for the party in recent cycles. Incumbent Gwen Moore, serving since 2005 and reelected with 74.8% in 2024, easily advanced past a primary challenger on August 11, 2026, while Republican Tim Rogers secured his party's nomination in a low-profile contest. These results reinforce trader consensus around the Democratic nominee's strong position heading into the November 3 general election. Historical turnout patterns, the district's urban and working-class demographics, and limited Republican infrastructure contribute to the wide gap in implied probabilities. A realistic shift would require an unforeseen late-cycle development such as a major scandal or health issue affecting the incumbent, though such events remain rare in this district.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWI-04 House Election Winner
$36,727 Vol.
$36,727 Vol.
Democratic Party
96%
Republican Party
1%
$36,727 Vol.
$36,727 Vol.
Democratic Party
96%
Republican Party
1%
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, 11:24 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...Wisconsin's 4th congressional district remains a solidly Democratic seat anchored in Milwaukee County, with a partisan voting index of D+26 and consistent double-digit margins for the party in recent cycles. Incumbent Gwen Moore, serving since 2005 and reelected with 74.8% in 2024, easily advanced past a primary challenger on August 11, 2026, while Republican Tim Rogers secured his party's nomination in a low-profile contest. These results reinforce trader consensus around the Democratic nominee's strong position heading into the November 3 general election. Historical turnout patterns, the district's urban and working-class demographics, and limited Republican infrastructure contribute to the wide gap in implied probabilities. A realistic shift would require an unforeseen late-cycle development such as a major scandal or health issue affecting the incumbent, though such events remain rare in this district.
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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