Maine Democrats are scrambling to replace Graham Platner as their Senate nominee against Republican Sen. Susan Collins after Platner dropped out last week amid a rape allegation. Platner, a combat veteran and oyster farmer backed by Sen. Bernie Sanders, had won the June primary in a landslide. With a July 27 deadline looming, the state party will hold a July 25 convention in Bangor where 601 delegates will choose the nominee.

Eight Democrats have filed so far, including former Maine CDC director Nirav Shah, former Senate President Troy Jackson (also backed by Sanders), Secretary of State Shenna Bellows (who lost to Collins in 2014), former congressional staffer Jordan Wood, and others. The party's 16 counties are convening special meetings this weekend to elect delegates.

Platner's grassroots network warned in an open letter that their infrastructure "does not transfer automatically" to the new nominee, demanding progressive commitments on Medicare-for-all, labor rights, and corporate accountability. This signals the challenge ahead for whoever wins to unite the party's progressive and establishment wings before the November election, which could determine Senate control.