Dan Koh leads the Massachusetts 6th Congressional District Democratic primary, scheduled for September 1, 2026, with an implied probability near 79 percent, driven primarily by a substantial fundraising edge exceeding $4.5 million and substantial cash reserves that have funded sustained television advertising. His background as a former Biden administration official and Andover selectman has supported messaging focused on federal experience and opposition to the Trump administration. State Representative Tram Nguyen, at roughly 20 percent, trails as the leading alternative, emphasizing her current legislative role, refugee background, and focus on affordability issues within the crowded field. The remaining candidates hold minimal shares, reflecting limited resources and name recognition. Recent August candidate forums and ongoing ad activity have reinforced visibility gaps, while earlier 2026 polling showed a more competitive race before resource advantages consolidated trader consensus.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedDan Koh 79%
Tram Nguyen 18.0%
John Beccia <1%
Seth Moulton <1%
$67,058 Vol.
$67,058 Vol.

Dan Koh
79%

Tram Nguyen
18%

John Beccia
1%

Seth Moulton
<1%

Dominick Pangallo
<1%

Beth Andres-Beck
<1%

Mariah Lancaster
<1%

Jamie Zahlaway Belsito
<1%

Kevin Larivee
<1%

Rick Jakious
<1%

Rachel Creemers
<1%

Diann Slavit Baylis
<1%
Dan Koh 79%
Tram Nguyen 18.0%
John Beccia <1%
Seth Moulton <1%
$67,058 Vol.
$67,058 Vol.

Dan Koh
79%

Tram Nguyen
18%

John Beccia
1%

Seth Moulton
<1%

Dominick Pangallo
<1%

Beth Andres-Beck
<1%

Mariah Lancaster
<1%

Jamie Zahlaway Belsito
<1%

Kevin Larivee
<1%

Rick Jakious
<1%

Rachel Creemers
<1%

Diann Slavit Baylis
<1%
If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other".
The resolution source for this market will be a consensus of official Democrat sources, including https://democrats.org/.
Any replacement of the nominee before election day will not change the resolution of the market.
Market Opened: Nov 25, 2025, 3:39 PM ET
Resolver
0x2F5e3684c...If no nominee is announced by November 3, 2026, 11:59PM ET, this market will resolve to "Other".
The resolution source for this market will be a consensus of official Democrat sources, including https://democrats.org/.
Any replacement of the nominee before election day will not change the resolution of the market.
Resolver
0x2F5e3684c...Dan Koh leads the Massachusetts 6th Congressional District Democratic primary, scheduled for September 1, 2026, with an implied probability near 79 percent, driven primarily by a substantial fundraising edge exceeding $4.5 million and substantial cash reserves that have funded sustained television advertising. His background as a former Biden administration official and Andover selectman has supported messaging focused on federal experience and opposition to the Trump administration. State Representative Tram Nguyen, at roughly 20 percent, trails as the leading alternative, emphasizing her current legislative role, refugee background, and focus on affordability issues within the crowded field. The remaining candidates hold minimal shares, reflecting limited resources and name recognition. Recent August candidate forums and ongoing ad activity have reinforced visibility gaps, while earlier 2026 polling showed a more competitive race before resource advantages consolidated trader consensus.
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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