CO-06 House Election Winner

Resolution Criteria

This market will resolve according to the party of the candidate who wins the CO-06 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 4, 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/).

The Democratic Party is the overwhelmingly heaviest-backed outcome to win the CO-06 House seat in the 2026 midterm elections, with volume heavily concentrated on a Democratic victor. The Republican Party holds a marginal share of market support. Resolution is determined by the official winner of Colorado's 6th congressional district race on 4 November 2026, confirmed by credible reporting consensus or the Federal Election Commission.

Market structure

The market offers eight possible outcomes but volume is almost entirely concentrated on a single outcome — Democratic Party victory. Republican Party support is negligible by comparison, making this effectively a one-sided market rather than a competitive two-horse race. Resolution follows the official certified winner of the CO-06 race, with the Federal Election Commission serving as the definitive fallback source. The resolution deadline is set around the 4 November 2026 election date.

Background

Colorado's 6th congressional district covers suburban Denver, including communities such as Aurora and parts of Jefferson County. The district has been represented by Democrat Jason Crow since 2019, following a competitive cycle that flipped the seat from Republican to Democratic control. Since then, the district has trended towards Democrats as its suburban character evolved. Colorado's 6th is not typically listed among the most contested battleground seats nationally, and its demographic composition — college-educated suburban voters who shifted away from Republicans during the Trump era — has made it a reliably Democratic-leaning district in recent cycles. Any redistricting decisions ahead of 2026 could affect the competitive landscape.

Key factors

Several structural factors could influence the final result. Redistricting following updated census data could redraw CO-06 boundaries, altering the electorate's composition and competitiveness. The national political environment heading into November 2026 will shape how suburban Denver voters respond, particularly attitudes towards the party controlling the White House at that time. Candidate quality and fundraising on both sides of the ballot will matter, particularly if an incumbent does not seek re-election, creating an open seat. Turnout dynamics in midterm cycles historically disadvantage the president's party, which could tighten or widen margins depending on which party holds the presidency. Local issues specific to the Aurora and suburban Denver area — including immigration, housing costs, and public safety — could also activate or suppress certain voter segments. Third-party or independent candidacies, though uncommon in congressional races, could affect vote share distribution given the market's provision for non-major-party affiliates.

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