Incumbent Ed Markey’s strong position in the Massachusetts Democratic Senate primary reflects his established name recognition, fundraising advantage, and recent polling gains showing leads of 20–28 points over Seth Moulton among likely voters. Endorsements from prominent figures including Elizabeth Warren and Ayanna Pressley, combined with Markey’s pledge that a third term would be his last, have helped solidify support despite ongoing criticism of his age. Debates have highlighted policy differences on affordability, immigration, and infrastructure but have not shifted momentum. With the September 1 primary approaching, Moulton or lower-polling candidates such as Alexander Rikleen could gain ground only through a major late development, including an unforeseen scandal, health event, or sharp turnout surprise.