Maine Senate Race: Democrats Challenge Susan Collins Ahead of 2026 Elections

Recent polling indicates a highly competitive Senate race in Maine, with Democratic candidates Graham Platner and Governor Janet Mills leading incumbent Republican Senator Susan Collins. The Emerson College Polling survey, conducted from March 21 to 23, shows Platner with 48% support compared to Collins' 41%, while Mills holds a slight edge over Collins at 46% to 43%. The poll surveyed 1,075 likely voters and has a margin of error of ±2.9%. This early snapshot suggests that the 2026 race could attract significant national attention, as control of the Senate remains a critical concern for both parties.

Newsweek

The poll also assessed candidate favorability, revealing that 57% of Maine voters view Collins unfavorably, while only 38% hold a favorable opinion. In contrast, Governor Mills faces a similar challenge, with 54% of voters expressing an unfavorable view of her and 40% viewing her favorably. Platner's favorability is more mixed, with 42% of respondents viewing him positively and 38% negatively, leaving 20% neutral or unfamiliar with him. Notably, independent voters, a crucial demographic in Maine, show a net unfavorable rating of 30 points for Collins, while Platner enjoys a small net favorable rating among this group.

Newsweek

Both Democratic candidates have criticized Collins' tenure in the Senate. Governor Mills stated, “Seniority without a backbone is just tenure... Senator Collins has failed to demonstrate the leadership required in this dangerous moment in history.” She accused Collins of supporting a Republican agenda that favors the wealthy over working-class Mainers. Platner echoed similar sentiments, asserting, “We will deliver this seat back to the people of Maine,” while condemning Collins' alignment with Donald Trump and her perceived failure to represent the interests of the constituents.

Newsweek

As the primary field begins to take shape, attention will likely shift to fundraising efforts, campaign messaging, and voter outreach strategies across Maine. National party committees and external groups are expected to closely monitor the developments in this race, which is poised to become one of the most scrutinized Senate contests of the 2026 election cycle.

Newsweek

• “What People Are Saying ” Mills said in a statement last month: “Seniority without a backbone is just tenure and after decades in Washington, Senator Collins has failed to demonstrate the leadership required in this dangerous moment in history.” — Janet Mills, Governor of Maine

Newsweek

• “In November, the movement we are building will turn the page not just on Senator Susan Collins but also on her politics of hollow promises, acquiescence to Donald Trump, and failed leadership that’s made her and her friends richer but has sold out the rest of us. We will deliver this seat back to the people of Maine.” — Graham Platner, Democratic Candidate

Newsweek

While the Emerson College Polling survey provides a snapshot of voter preferences, it does not capture the full dynamics of the race, including potential shifts in voter sentiment as the election approaches. Further polling may be necessary to gauge the evolving political landscape in Maine.

Newsweek