Dan Koh leads the MA-06 Democratic primary field as the open-seat successor to Seth Moulton, who is seeking a U.S. Senate seat. Koh’s dominant cash-on-hand advantage of roughly $3.6 million, combined with endorsements from figures such as Pete Buttigieg, has consolidated trader support around his federal experience and organizational strength. State Representative Tram Nguyen trails as the main alternative, drawing on her current legislative record and recent campaign advertising that highlights her refugee background and state-level work on affordability and housing. Lower-polling candidates remain fragmented with minimal fundraising visibility. The September 1 primary date leaves limited time for late shifts, reinforcing the current trader consensus reflected in market pricing.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedDan Koh 66%
Tram Nguyen 27.6%
Beth Andres-Beck <1%
Jamie Zahlaway Belsito <1%
$60,095 Vol.
$60,095 Vol.

Dan Koh
66%

Tram Nguyen
28%

Beth Andres-Beck
<1%

Jamie Zahlaway Belsito
<1%

Diann Slavit Baylis
<1%

Seth Moulton
<1%

Mariah Lancaster
<1%

John Beccia
<1%

Kevin Larivee
<1%

Dominick Pangallo
<1%

Rick Jakious
<1%

Rachel Creemers
<1%
Dan Koh 66%
Tram Nguyen 27.6%
Beth Andres-Beck <1%
Jamie Zahlaway Belsito <1%
$60,095 Vol.
$60,095 Vol.

Dan Koh
66%

Tram Nguyen
28%

Beth Andres-Beck
<1%

Jamie Zahlaway Belsito
<1%

Diann Slavit Baylis
<1%

Seth Moulton
<1%

Mariah Lancaster
<1%

John Beccia
<1%

Kevin Larivee
<1%

Dominick Pangallo
<1%

Rick Jakious
<1%

Rachel Creemers
<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 MA-06 Democratic primary field as the open-seat successor to Seth Moulton, who is seeking a U.S. Senate seat. Koh’s dominant cash-on-hand advantage of roughly $3.6 million, combined with endorsements from figures such as Pete Buttigieg, has consolidated trader support around his federal experience and organizational strength. State Representative Tram Nguyen trails as the main alternative, drawing on her current legislative record and recent campaign advertising that highlights her refugee background and state-level work on affordability and housing. Lower-polling candidates remain fragmented with minimal fundraising visibility. The September 1 primary date leaves limited time for late shifts, reinforcing the current trader consensus reflected in market pricing.
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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