Making his case Democratic U.S. Senate candidate from Maine Graham Platner speaking to a standing-room-only group of voters at a 2026 town hall in Appleton, Maine. (more) Graham Platner Meet the Marine Corps veteran, Maine oysterman, and would-be senator Also known as: Graham Cunningham Platner Written by Tracy Grant Tracy Grant is a senior editor at Encyclopaedia Britannica. She previously served as editor in chief, the first woman to hold that title. Tracy Grant Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated May 6, 2026 •History Making his caseDemocratic U.S. Senate candidate from Maine Graham Platner speaking to a standing-room-only group of voters at a 2026 town hall in Appleton, Maine.© Graeme Sloan/Getty Images Maine Democratic U.S. Senate candidate Graham Platner is a study in contrasts. Consider: Whether Maine voters will choose to send the young, brash oyster farmer to the United States Senate over the veteran Republican incumbent Susan Collins is setting up to be one of the most-watched races...

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