Incumbent Ed Markey has consolidated support among Democratic primary voters ahead of the September 1 contest, as shown by recent polls placing him 14 to 35 points ahead of challenger Seth Moulton. Markey’s long tenure, endorsements from prominent progressives including Elizabeth Warren and Bernie Sanders, and emphasis on his legislative record have driven this shift, particularly among women, college-educated voters, and those prioritizing ideological alignment. Moulton’s focus on generational change and Markey’s age has failed to sustain earlier momentum, while Ayanna Pressley and other potential contenders have endorsed the incumbent or withdrawn. With only days remaining before voting, scenarios that could alter the outcome include a major late development affecting turnout or health perceptions, though current polling averages and the compressed timeline limit such possibilities in trader assessments.