Voters in Alaska are going to the polls to cast their ballots in key races Tuesday, including a Senate election that has garnered widespread attention amid scrutiny over the presence of a candidate bearing nearly the same name as the sitting senator, Dan Sullivan.
Alaska’s election system itself has also been in the spotlight in recent years, since the state instituted a top-four nonpartisan primary and ranked choice voting in the general election.
Here’s what to know about Alaska’s voting system:
What is ranked choice voting?
Ranked choice voting allows voters to rank as many or as few candidates as they’d like in order of preference, rather than selecting a single candidate on the ballot. First implemented in 2022, the unique system aims to stymie polarization by moving the state away from party primaries. Instead, the top four candidates in the nonpartisan primary move on to the general election.
On Tuesday, if any candidate secures support from more than 50% of voters as their top choice, they win. But if nobody wins an outright majority, the count goes to a second round. The candidate with the fewest votes is eliminated, and their supporters’ votes are redistributed to their second choice. That process continues until one candidate wins a majority.
For example, say 100 people voted in the Alaska Senate race. Fifty of those voters ranked Candidate A as their top choice, 40 picked Candidate B, seven picked Candidate C and three picked Candidate D. Since no candidate reached 51 votes in the first round, Candidate D — the one with the fewest votes — would be eliminated in the second round of counting. The voters who ranked Candidate D first would then have their second-choice candidates tabulated. If one of those three votes went to Candidate A, Candidate A would have 51 votes and win. If not, the process would repeat.
In 2022, a special election was held to fill a vacancy in the House, and three candidates faced off under the new system. No candidate won more than 50% of first-choice votes, and the contest went to the ranked choice tabulation. Democrat Mary Peltola secured a majority in results that came 15 days after Election Day. Later that year, as she sought election to a full term, Peltola also won on the second round, with 55% of the voters after an initial 48.8%.
Who are the Alaska Senate candidates?
Alaska’s Senate race could be key to determining control of the upper chamber. Voters will be presented with four choices: Sen. Dan S. Sullivan, the GOP incumbent; Daniel J. Sullivan, a candidate with nearly the same name; Gerald Heikes, another Republican; and Peltola.
Sen. Sullivan is a second-term senator and a Marine veteran who worked at the State Department during the George W. Bush administration. His main opponent is Peltola, who became the first Democrat to represent the state in the House in 50 years in 2022. But Daniel J. Sullivan has added a wrinkle to the race.
The second Sullivan is a former teacher who announced he was challenging the sitting senator in June, prompting an unsuccessful push to remove him from the ballot.
Two Dan Sullivans on the ballot
Daniel J. Sullivan’s decision to run sparked a legal fight over his eligibility to appear on the primary ballot that played out in state court over the summer. The state supreme court eventually allowed Daniel J. Sullivan to remain on the ballot and directed Alaska’s Division of Elections to determine how he should be listed.
During Alaska’s open Senate primary in August, Peltola garnered 49.5% of the vote, followed by Dan Sullivan, the senator, at 41.4%. The retired teacher, Daniel J. Sullivan, won just 2.5%.
A sample ballot for the general election shows the senator listed as “Sullivan, Dan S. (Registered Republican) Incumbent.” Daniel J. Sullivan has no identifiers beyond his name.
Haven Daley 
Still, the candidacy of Daniel J. Sullivan raised concerns that it could lead to voter confusion and drew a late-breaking effort by the Justice Department to intervene.
The Trump administration filed a lawsuit late last month that sought to block Alaska election officials from certifying the results of the Senate election if Dan S. Sullivan, the Republican incumbent, loses to Peltola. But on Sunday, a federal judge dismissed the lawsuit, finding that the federal government did not have the legal right to sue.
The Justice Department has said it will appeal.
Amid the litigation, the New York Times reported last week that there was a secret effort by political operatives aligned with Peltola’s campaign to help recruit Daniel J. Sullivan to peel voters away from the senator. Peltola has denied any involvement in the alleged plan.
President Trump has denounced Daniel J. Sullivan’s candidacy, calling him a “FAKE” candidate in a Truth Social post shortly after 1 a.m. Tuesday. The president claimed that the retired teacher is “MISSING IN ACTION” and has “TOTALLY DISAPPEARED.”
“MAYBE HE HAS BEEN ‘KIDNAPPED’ BY THE CORRUPT DUMOCRAT LAWYERS??? THEY ARE SCARED STIFF OF BEING PROSECUTED FOR ELECTION FRAUD!!!” Mr. Trump wrote in an all-caps post.
How long could counting votes in Alaska’s ranked choice voting system take?
Conducting the election in Alaska is expected to take some time, experts have warned, emphasizing the need for patience as the Senate race holds the potential to play a key role in the balance of power in Washington.
Part of the lengthy process could come from Alaska’s sprawling geography, remote locations and mail ballots, since Alaska counts mail ballots received 10 days after Election Day, or 15 days in some cases.
Tabulation rounds in Alaska’s ranked choice voting system also begin after the last counting of ballots 15 days after Election Day, meaning if one candidate does not secure more than 50% of first-place support on the ballot, the process could drag on for weeks.
Alaska election officials are targeting Nov. 25 as the day to certify the election results. In 2022, Peltola secured a full, two-year term on Nov. 30.
