Dan Koh maintains a strong lead in the Democratic primary for Massachusetts’ 6th Congressional District, an open seat following Rep. Seth Moulton’s Senate bid. Recent developments include former President Biden’s endorsement and Koh’s record fundraising totals exceeding $3.5 million, along with early ballot qualification and multiple local endorsements. These factors have positioned him well ahead of the field that includes state Rep. Tram Nguyen and several other candidates. Trader consensus reflected in current pricing aligns with Koh’s established campaign infrastructure and visibility advantages ahead of the September 1 primary, though additional endorsements or shifts in grassroots support could still influence outcomes in this multi-candidate contest.