There are options when he drops out. For example, Shenna Bellows, Troy Jackson, Nirav Shah are mentioned. I understand Troy Jackson campaigned with Platner and could perhaps be a good candidate to carry the movement forward.
As per NYTimes (posted by RandyF here), plans are statewide caucuses or a "pop-up" convention 7/25 weekend (assuming he withdraws)
Maine Dems will get a new candidate. And they will not be selected by the party committee. (I found it notable that Mills was not included in the list of possible replacements. A very good thing IMO. I just don't see her inspiring many of those Platner inspired.)
And once they have their new nominee, the people of Maine, and supporters from afar, will make it a winning campaign.
Top Maine Democratic Party officials have discussed possible plans to replace Mr. Platner on the ballot, with options including a pop-up convention on the weekend of July 25 to choose a nominee, or holding a statewide caucus to effectively redo the partys primary election, according to two people who have talked with the officials and spoke on the condition of anonymity to discuss internal party conversations.
Officials have ruled out having the state partys committee, which includes about 100 members, choose the nominee, the people said......
Should Mr. Platner withdraw by next Monday, the leading candidates to replace him could potentially include the Democrats who ran for governor and did not win the primary.
They include Ms. (Shenna) Bellows, Troy Jackson, a former president of the Maine Senate, and Nirav Shah, a former director of Maines public health agency. Jordan Wood, who lost a primary for a House district covering northern Maine, is also a potential candidate.
And here's a gift link to the article
https://www.nytimes.com/2026/07/06/us/politics/who-would-replace-graham-platner-maine.html?unlocked_article_code=1.v1A.iM4y.eQFzT3W_7ioS&smid=url-share