Why It Matters
Alaska’s August 18 primary ballot could feature two candidates named Dan Sullivan running for the same U.S. Senate seat — a situation that has prompted a formal state investigation into whether voter confusion is being deliberately manufactured. The outcome will determine whether a retired Petersburg teacher can challenge a two-term incumbent using his own legal name.
What Happened
Dan J. Sullivan of Petersburg filed for the U.S. Senate race on May 29, seeking to unseat incumbent Republican Sen. Dan S. Sullivan. The two men share a surname, political party affiliation, and now a ballot line — a combination that quickly drew scrutiny from state officials.
Lt. Gov. Nancy Dahlstrom, a Republican, announced an investigation into the Petersburg candidate’s filing earlier this week and issued a list of questions requiring answers under sworn affidavit. Petersburg Sullivan submitted his formal response by the Wednesday noon deadline.
The investigation centers on whether Petersburg Sullivan filed under the same name and party label as the incumbent with the specific intent to mislead voters — potentially steering support away from the incumbent and toward Democratic candidate Mary Peltola.
Dahlstrom’s questions covered a range of topics, including Petersburg Sullivan’s Republican Party affiliation, voter registration records, decisions behind his campaign website design and logo, and whether he has coordinated with the Alaska Democratic Party.
Incumbent Sen. Sullivan has been direct in his characterization of the challenge, calling his namesake a “sham candidate” and alleging the filing is an orchestrated effort to benefit Peltola. His campaign manager, Billy Mackey, said the campaign “welcomes the Lieutenant Governor’s investigation and have full confidence the facts will speak for themselves.”
The Alaska Democratic Party denied any involvement. Executive Director Jenny-Marie Stryker stated the organization “is in no way affiliated with either Dan Sullivan.”
Petersburg Sullivan, for his part, pushed back on the premise of the investigation. “My name is my name,” he said. “The ballot belongs to the people and not to the incumbent.”
By the Numbers
16 candidates have filed to compete for Alaska’s U.S. Senate seat, which carries a six-year term. Incumbent Sen. Sullivan has served two terms in office. Petersburg Sullivan has lived in the city of Petersburg for nearly 50 years and is a retired teacher. The primary is scheduled for August 18, and the investigation’s findings will determine whether Petersburg Sullivan’s name appears on that ballot.
Zoom Out
Ballot access disputes involving similarly named candidates are uncommon but not unprecedented in American politics. States have varying legal standards for determining whether a candidacy constitutes deliberate voter deception versus a lawful exercise of a citizen’s right to run under their own name. Alaska’s ranked-choice and open primary system adds further complexity, as voters select among all candidates regardless of party in the first round.
Senate primaries across the country are attracting crowded fields in 2026. In Kansas, a pediatric surgeon recently entered a competitive Democratic primary to challenge incumbent Sen. Roger Marshall, illustrating a broader pattern of high-stakes Senate contests drawing unconventional challengers this cycle.
What’s Next
The investigation led by Lt. Gov. Dahlstrom will proceed based on Petersburg Sullivan’s sworn responses. If the findings indicate intentional voter deception, state officials could potentially remove him from the August 18 primary ballot or alter how his name appears. Dahlstrom specifically asked Petersburg Sullivan whether he would object to being listed on the ballot as “Sullivan, Daniel James Jr. (non-incumbent)” without a Republican Party designation — a modification that could reduce confusion while preserving his right to run.
No final determination has been announced. The outcome will set a significant precedent for how Alaska handles candidacy challenges involving shared names and party affiliations ahead of a competitive Senate general election.