Dan Koh secured the Democratic nomination in the September 1 primary for the open Massachusetts 6th congressional district seat, defeating a crowded field with strong establishment backing, including endorsements from former President Biden and Vice President Harris, along with a substantial fundraising advantage exceeding several million dollars. The district’s consistent Democratic lean, rated solid or safe by multiple forecasters, underpins trader consensus favoring Koh at 95.5 percent. Republican nominee Micah Jones, an Army veteran running unopposed in his primary, has emphasized moderate positioning and constituent priorities but faces structural headwinds in a district that favored Democratic candidates by double-digit margins in recent cycles. With the November 3 general election six weeks away, late developments such as a major scandal or sharp national shift would be required to meaningfully alter the current implied probability.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMA-06 House Election Winner
$27,183 Vol.
$27,183 Vol.
Dan Koh (D)
96%
Micah Jones (R)
3%
$27,183 Vol.
$27,183 Vol.
Dan Koh (D)
96%
Micah Jones (R)
3%
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, 11:09 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...Dan Koh secured the Democratic nomination in the September 1 primary for the open Massachusetts 6th congressional district seat, defeating a crowded field with strong establishment backing, including endorsements from former President Biden and Vice President Harris, along with a substantial fundraising advantage exceeding several million dollars. The district’s consistent Democratic lean, rated solid or safe by multiple forecasters, underpins trader consensus favoring Koh at 95.5 percent. Republican nominee Micah Jones, an Army veteran running unopposed in his primary, has emphasized moderate positioning and constituent priorities but faces structural headwinds in a district that favored Democratic candidates by double-digit margins in recent cycles. With the November 3 general election six weeks away, late developments such as a major scandal or sharp national shift would be required to meaningfully alter the current implied probability.
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