2026 Maine Senate Democratic Primary
Graham Platner: 46% (+9)
Janet Mills: 39% (-8)
David Costello: 4%
Not sure: 11%
Democratic gubernatorial candidate Troy Jackson is urging his primary opponents to join him in rejecting outside spending by wealthy groups in the election. Jackson has signed the “People’s Pledge,” which calls on Democratic primary candidates to oppose “independent expenditures by wealthy, corporate and dark money groups” and on campaign supporters to either volunteer their time or donate directly to candidates.