Democrat Mary Peltola holds a narrow lead over Republican incumbent Dan Sullivan in Alaska’s Senate race, with the RealClearPolitics polling average from September 22 to October 16 putting her ahead 49.5% to 47.3% in a contest both parties now treat as a genuine toss-up rather than a safe Republican hold, in a state that uses ranked-choice voting for its general election.
A Third Term on the Line for Sullivan
Sullivan is seeking a third term in a cycle where several incumbent Republican senators are facing tighter-than-expected races amid broader national headwinds, and his campaign has leaned on President Trump’s continued popularity in the state, including a scheduled campaign rally in Alaska meant to energize Republican turnout in the race’s closing weeks. Alaska’s statewide electorate has grown more volatile in recent cycles since the state adopted its top-four primary and ranked-choice general election system, making traditional partisan assumptions less reliable than in states with conventional primaries.
Peltola’s Path Back to Statewide Office
Peltola, who previously represented Alaska in the US House before losing her seat, led the state’s August top-four primary heading into the general election, giving her campaign early momentum that has largely held through the fall polling cycle. Her appeal to moderate and independent voters, along with her standing in rural and Alaska Native communities, has been central to keeping her competitive in a state where Republicans typically hold a structural advantage in federal races.
Polls Disagree on the Margin
Individual surveys have produced conflicting pictures: a New York Times/Siena poll conducted September 22 to October 1 showed Peltola ahead 50% to 43%, while a Quantus Insights poll from September 28-30 had Sullivan narrowly leading 48% to 47%, and a later Alaska Survey Research poll reported Peltola winning 51% to 49% in the final ranked-choice round. The Pollsmax aggregate, built from 25 polls, shows a tighter race than RealClearPolitics at 47.1% to 45.9%, underscoring how sensitive the overall picture is to which polls are included and weighted.
Why Ranked-Choice Voting Changes the Calculus
Alaska’s ranked-choice system means first-round polling leads don’t necessarily predict the final outcome, since voters’ second and third choices can shift the result once lower-performing candidates are eliminated and their support reallocated. Notably, a second candidate also named Dan Sullivan appears on the ballot, a quirk that has prompted both campaigns to spend additional resources ensuring voters understand which Sullivan is the Republican incumbent, a distinction that matters more under ranked-choice tabulation than it would in a traditional first-past-the-post system.
The Demographic Divide
A September AARP poll of 800 likely voters found Peltola leading overall but also identified a clear age split, with voters 50 and older favoring Sullivan while younger voters broke more heavily toward Peltola, a pattern consistent with broader national trends this cycle but one that will interact unpredictably with Alaska’s unusually dispersed, rural-heavy electorate and its historically lower turnout among younger voters.
What’s Next
With Trump’s rally aimed at consolidating Republican turnout and Peltola’s campaign working to maximize her advantage among independents and younger voters, the race’s outcome will likely hinge on which side does more to turn out its coalition under a voting system that rewards broad appeal over base mobilization alone. National Republican and Democratic groups are both treating Alaska as a genuine pickup or defense opportunity, a sharp change from previous cycles when the seat drew comparatively little outside investment.
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