Trader consensus favors the Republican Party at 64% implied probability to win Colorado's 4th Congressional District House seat, driven by the district's strong Republican partisan voter index—historically R+13—and Rep. Lauren Boebert's incumbency after her 2024 victory following a competitive primary switch from CD-3. Recent Democratic primary consolidation boosted frontrunner retired Rear Adm. Eileen Laubacher after Trisha Calvarese's April 1 withdrawal, leaving her likely uncontested on June 30 amid superior Q1 2026 fundraising that outpaces Boebert. Despite this financial edge signaling potential turnout boosts, no public polls show a close general election race on November 3, sustaining the GOP's structural advantage in this rural eastern Colorado battleground.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedCO-04 House Election Winner
CO-04 House Election Winner
Republican Party
64%
Democratic Party
33%
Republican Party
64%
Democratic Party
33%
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, 10:30 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...Trader consensus favors the Republican Party at 64% implied probability to win Colorado's 4th Congressional District House seat, driven by the district's strong Republican partisan voter index—historically R+13—and Rep. Lauren Boebert's incumbency after her 2024 victory following a competitive primary switch from CD-3. Recent Democratic primary consolidation boosted frontrunner retired Rear Adm. Eileen Laubacher after Trisha Calvarese's April 1 withdrawal, leaving her likely uncontested on June 30 amid superior Q1 2026 fundraising that outpaces Boebert. Despite this financial edge signaling potential turnout boosts, no public polls show a close general election race on November 3, sustaining the GOP's structural advantage in this rural eastern Colorado battleground.
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