Nirav Shah leads the Democratic primary for Maine governor due to his strong polling edge from recent surveys showing 28-35% first-round support, bolstered by his experience as former state CDC director during the pandemic and clear focus on healthcare access, housing costs, and property tax relief. Troy Jackson, the former Senate president, holds second place by appealing to working-class voters through his legislative record on rural issues and tribal sovereignty, though he trails significantly in head-to-head polls. Hannah Pingree, Shenna Bellows, and Angus King III remain competitive under ranked-choice voting rules for the June 9 contest, with recent debates highlighting shared priorities like standing against federal policy shifts. Trader pricing reflects Shah's frontrunner status amid low undecideds, while leaving room for late shifts from endorsements or turnout in key Democratic strongholds.