Graham Platner wins Maine primary, set to challenge GOP Sen. Susan Collins

Graham Platner has secured the Democratic nomination in Maine, winning the primary election held on June 10, 2026. This victory positions the oyster farmer and military veteran to challenge incumbent Republican Senator Susan Collins in what is anticipated to be a closely watched general election in November. Platner's win comes despite facing several controversies during his campaign.

The race against Senator Collins, who is seeking her sixth term, is considered a crucial battle for Democrats aiming to gain control of the U.S. Senate. Platner, a political newcomer, has campaigned as a progressive, focusing on economic populist messages and criticizing the establishment. His campaign has drawn national attention, with endorsements from prominent progressive figures.

Polls prior to the primary indicated Platner held a significant lead, especially after Governor Janet Mills suspended her own campaign, effectively clearing his path to the nomination. Platner's general election strategy is expected to involve a direct and critical approach towards Senator Collins, highlighting her voting record and long tenure in office.