Maine Senate: Collins Race Splits by Pollster
From the PollingSource daily briefing for October 3, 2026
Maine Senate: Collins Race Splits by Pollster
Two polls of the Maine Senate race, both completed October 1, agree on the headline but disagree on everything underneath it. CBS News/YouGov put Susan Collins, the Republican, and Democrat Troy Jackson at 50% apiece among likely voters. Trafalgar Group, surveying the same contest on the same day, found an identical tie — but at 46% each. An eight-point gap in combined vote share between two polls measuring the same race on the same day is not noise; it reflects different assumptions about who turns out and how undecided voters are allocated.
CBS/YouGov's tighter spread between the leaders and the 100% total suggests a likely-voter model with few undecideds left on the table. Trafalgar's lower combined figure implies a meaningful bloc of voters — upward of 8% — still unallocated to either candidate, a pattern Trafalgar has shown in other states this cycle. Which model proves closer to the eventual result will say as much about each firm's methodology as about the race itself. For now, the two surveys reinforce rather than contradict each other on the only point that matters for strategists and donors: Maine remains a toss-up, with no discernible lean toward either Collins or Jackson despite the four-point difference in where that tie sits numerically.
The practical consequence of a tied race this close to Election Day is that both campaigns will treat turnout operations, not persuasion, as the deciding variable. A poll showing 50-50 implies a shrinking pool of persuadable voters; one showing 46-46 implies the opposite. National committees allocating late money will have to decide which model to believe, and that decision could shape ad spending in the race's final weeks more than any single topline number.
Maine's result will be one of the clearer tests this cycle of whether traditional likely-voter screens or Trafalgar's turnout assumptions better capture the electorate — a methodological question voters in other tight states will be watching as closely as the outcome itself.