Former Maine Senate President Troy Jackson dominated the state’s delegate selection process over the weekend, capturing at least 290 of the first 319 delegates chosen across eight counties and moving within 11 delegates of clinching Maine’s Democratic Senate nomination.
Jackson’s overwhelming performance in Saturday’s county caucuses marks a dramatic consolidation of support in the rushed and unusual race to replace Graham Platner, the original Democratic nominee whose campaign collapsed in early July following sexual assault allegations. The Maine Democratic Party opted to use a delegate convention rather than a primary to select Platner’s replacement, scheduling a final nominating convention for July 25 in Bangor.
The progressive logger from Allagash built his advantage through superior organization. His campaign released printed delegate slates and distributed them at county meetings, while his rivals—former public health chief Nirav Shah, Secretary of State Shenna Bellows, and 2nd Congressional District candidate Jordan Wood—drew from overlapping pools of local activists. According to the Bangor Daily News analysis, Jackson won at least 148 of 149 delegates in Cumberland County, swept all 44 in Penobscot County, and claimed at least 37 of 40 in Kennebec County, among other strong showings.
Jackson’s campaign benefited from backing by Maine’s labor unions, which mobilized their members to attend the county meetings and support his slate. His longtime union allies provided organizational muscle that his rivals, who were less prepared for the accelerated timeline, could not match. “I think some of the other ones might have had to throw some people on at the end,” Jackson told reporters in Augusta, referring to the rushed nature of the process.
The 601-delegate state convention in Bangor will decide the final nominee to face Republican Senator Susan Collins in November. Of the 601 total delegates, 500 are being selected through the county caucuses held over July 18-19, with eight more counties voting Sunday. The remaining delegates come from party leadership and other designated slots. Though delegates are formally unpledged, Jackson’s commanding lead and organizational dominance have left his rivals with little path to recovery.
Jackson, who served as Maine Senate president from 2018 to 2024, is a fifth-generation logger and longtime labor advocate. Platner had ranked Jackson as his number-one choice on Maine’s ranked-choice ballot during the Democratic gubernatorial primary earlier this year, offering Jackson an implicit endorsement as his replacement.
Sources
- Bangor Daily News — reported Jackson won at least 290 of 319 first-day delegates and fell 11 delegates short of clinching; detailed county-by-county results and rival campaign organization
- Politico — confirmed Jackson captured a strong majority of delegates and described his union-backed organization dominating the Saturday county meetings
- The New York Times — reported Jackson showed signs of significant strength as half the state’s counties picked delegates
- CNN — described Jackson as having built an overwhelming advantage in the race to replace Platner
