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Alaska voters cast ballots in U.S. Senate primary election

Alaskans voted Tuesday in a U.S. Senate primary where incumbent Sen. Dan Sullivan (R) faces a challenge from former Rep. Mary Peltola (D).

Published August 18, 2026 at 5:00 PM EDT

The short answer

Alaskans voted Tuesday in a U.S. Senate primary where incumbent Sen. Dan Sullivan (R) faces a challenge from former Rep. Mary Peltola (D). Voters in Alaska went to the polls Tuesday for a primary election to determine the candidates for a U.S. Senate seat currently held by Sen. Dan Sullivan (R-AK).

Alaska voters cast ballots in U.S. Senate primary election

The Facts

Who
Sen. Dan Sullivan (R), Mary Peltola (D), and Dan J. Sullivan (R)
What
Primary election for U.S. Senate seat
When
Tuesday, August 18, 2026
Where
Alaska
Why
To determine the top four candidates who will advance to the general election for the Alaska U.S. Senate seat.

Voters in Alaska went to the polls Tuesday for a primary election to determine the candidates for a U.S. Senate seat currently held by Sen. Dan Sullivan (R-AK). The race features a challenge from former Rep. Mary Peltola (D-AK) as Democrats seek to gain control of the seat.

The election is being conducted as an open primary where the top four finishers will advance to the general election. This format allows candidates of all political affiliations to appear on the same ballot, with voters selecting their preferred choice regardless of party.

A central point of contention in the primary involves a second candidate also named Dan Sullivan, who is running as a Republican. Sen. Dan Sullivan has stated that the challenger, Dan J. Sullivan, is a "Democratic plant" intended to confuse voters. The Democratic party has denied this claim.

For individual Alaskans, the immediate change will be noticed in the consolidation of the candidate field. Under the "top four" system, the state's diverse electorate will see the list of choices for the November ballot reduced to only four names. The presence of two candidates with the name Dan Sullivan adds a layer of technical complexity for voters, who must distinguish between the incumbent and the challenger on their ballots to ensure their vote is recorded for their intended choice.

The results of this race also have knock-on effects for national party strategy and future policy. If a seat flips party control, it shifts the balance of power in the Senate, potentially changing which party sets the legislative agenda for the entire country. The primary results will finalize the roster for the general election in November. Polls were scheduled to close at 12 a.m. EDT Wednesday, with official results to follow from the Alaska Division of Elections.

Summaries are written by The Plain Record to state the facts of a story plainly and without political slant. See our editorial standards, or report a correction.

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Questions readers ask

What happened: Alaska voters cast ballots in U.S. Senate primary election?

Voters in Alaska went to the polls Tuesday for a primary election to determine the candidates for a U.S. Senate seat currently held by Sen. Dan Sullivan (R-AK). The race features a challenge from former Rep. Mary Peltola (D-AK) as Democrats seek to gain control of the seat.

Who is involved?

Sen. Dan Sullivan (R), Mary Peltola (D), and Dan J. Sullivan (R)

When did this happen?

Tuesday, August 18, 2026

Where did this happen?

Alaska

Why does this matter?

To determine the top four candidates who will advance to the general election for the Alaska U.S. Senate seat.