Janet Mills has the resume for her Senate bid. Is that enough to win over Maine's Democratic voters?

Maine Governor Janet Mills is leveraging her extensive political experience and establishment endorsements in her bid for the Democratic U.S. Senate nomination, but faces a strong challenge from progressive outsider Graham Platner, who has energized voters with larger rallies and more fundraising despite a thinner resume. Mills, 78, emphasizes her track record and readiness to defeat incumbent Republican Senator Susan Collins, while Platner, 41, appeals to younger voters and those seeking change, focusing on affordability and criticizing political elites. Despite her advantages in name recognition and support from figures like Chuck Schumer, Mills is struggling to match Platner’s momentum in a party increasingly divided over age, ideology, and strategy. The June 9 primary will test whether experience or fresh energy resonates more with Maine’s Democratic voters.