Graham Platner

Graham Cunningham Platner is a Marine Corps veteran, oyster farmer, and local official from Sullivan, Maine. He serves as Sullivan's harbormaster and chair of the town's planning board. He is the Democratic nominee for U.S. Senate in Maine in 2026, challenging incumbent Senator Susan Collins.

• Party: Democrat
• Office sought: U.S. Senate
• State: Maine
• Current office: Harbormaster and Planning Board Chair, Town of Sullivan, Maine