Can Mary Peltola Actually Beat Dan Sullivan?

She has out-raised him, national Democrats have made Alaska a target, and ranked-choice voting gives her a second path. But Lisa Murkowski just switched sides — and that is the fact almost nobody is modeling.

Democrats have named Alaska one of their top Senate targets, moved millions of dollars into a state with roughly six hundred thousand registered voters, and recruited the only Democrat to win statewide there since 2008. And the honest answer to whether Mary Peltola can beat Dan Sullivan is: probably not, but the reasons it might happen are better than the polling suggests.

Here is the case on both sides, with the parts each campaign would rather you skipped.

The case for Peltola

She has already done the impossible version of this

In August 2022 Peltola won a special election for Alaska's at-large U.S. House seat, becoming the first Alaska Native member of Congress and the first Democrat to hold the seat in forty-nine years. She won it again that November. No Democrat has represented Alaska in the Senate since 2015, and the state has not voted for a Democratic presidential candidate since 1964 — but Peltola is the proof that Alaska's federal races are not simply partisan arithmetic. She is Yup'ik, from the Yukon–Kuskokwim Delta, and her rural and Alaska Native base is not a constituency national models handle well.

She is out-raising a two-term incumbent

Peltola has raised more than Sullivan over the cycle. That is not a small thing against an incumbent senator with committee seniority, and it is compounded by outside money: Senate Majority PAC alone has put more than ten million dollars into the state against Sullivan. In a media market this small, that volume of spending saturates.

The caution is that money does not reliably convert here. Peltola out-raised Nick Begich III in 2024 and lost. Sullivan was outspent by independent Al Gross in 2020 and won by double digits. Alaska has a long habit of ignoring the fundraising leaderboard.

Ranked-choice gives her a second path

Because the November election is ranked-choice, Peltola does not need to lead on first preferences to win — she needs to be acceptable enough to enough people that transfers from eliminated candidates break her way. That is precisely the mechanism that delivered her the House seat in 2022. A moderate-coded Democrat in a state with a large independent registration is the archetype the system rewards.

The case for Sullivan

Murkowski flipped, and that is the underrated fact of this race

Sen. Lisa Murkowski endorsed Peltola in her 2022 and 2024 House campaigns. This year Murkowski has endorsed Sullivan.

That reversal matters more in Alaska than a senator's endorsement usually would. Murkowski is the state's proof-of-concept for cross-party appeal — she won a write-in campaign in 2010 after losing her own primary — and her blessing was a substantial part of the permission structure that let moderate Republicans vote for Peltola twice. Withdrawing it removes a specific, identifiable bloc of ticket-splitters from Peltola's coalition, and does so in the exact ranked-choice context where second preferences decide outcomes.

She has already lost this electorate once

Peltola lost the 2024 House race to Nick Begich III. That was a presidential-year electorate rather than a midterm one, which cuts both ways — midterm turnout patterns have favored Democrats nationally throughout this cycle — but the plain fact is that these same voters, recently, chose the Republican. Any model that treats her 2022 wins as the baseline and ignores 2024 is telling you what you want to hear.

No prominent Republican challenger split the field

Sullivan drew no serious primary opposition. He enters November with a consolidated party behind him, an incumbent's fundraising base, and a national environment that, whatever it is doing to House Republicans, has not obviously moved Alaska. The state's Republican registration advantage is real and structural.

The complication on Tuesday's ballot

A second candidate named Dan Sullivan, from Petersburg, filed as a Republican at the deadline and appears on the same top-four primary ballot as the incumbent. It is a vote-splitting problem that falls entirely on Sullivan, and one his campaign has had to spend real money correcting.

It will not change who advances — both Sullivan and Peltola will make the top four comfortably. But it will muddy Tuesday's headline number, which is the only hard data anyone will get on this race before November. Read the primary margin with that asterisk attached.

Where this actually sits

We rate Alaska Lean R. Sullivan is favored, and the Murkowski reversal is the strongest single piece of evidence for why. But this is a race with a real Democratic candidate, real money, a voting system that rewards broad acceptability over partisan intensity, and a state with a documented willingness to elect people who do not fit its presidential voting pattern.

If Democrats end up needing a seat nobody in Washington was counting on, this is the most plausible candidate for it on the map. That is a meaningfully different statement from saying it is likely.

What Tuesday tells you

• The raw gap. Peltola within a few points of Sullivan on first preferences means the ranked-choice path is live. A double-digit deficit means it probably is not.
• The decoy's share. Whatever the Petersburg Sullivan takes is a rough proxy for how much ballot confusion is in play.
• Who else makes the top four, and whether their voters look transferable to either side.
• Rural and Alaska Native turnout, which reports late and is the core of Peltola's coalition. Early returns will understate her.