The Justice Department is seeking to block the certification of the Alaska Senate race results if the Republican incumbent loses by a margin smaller than the votes received by a similarly named candidate.

DoJ files a lawsuit to block certification of the US Senate race in Alaska if Republican Sen. Dan Sullivan loses the contest while another candidate with the same name is on the ballot. https://www.alaskasnewssource.com/2026/10/23/trump-administration-sues-block-possible-democratic-win-alaska-senate-race/

DOJ seeks to block Alaska Senate result if Republican incumbent narrowly loses 
In a lawsuit, the Justice Department cited confusion over two similarly named candidates, including Republican Sen. Daniel S. Sullivan. https://www.washingtonpost.com/national-security/2026/10/23/doj-seeks-block-alaska-senate-result-if-republican-incumbent-narrowly-loses/

The Justice Department has moved to preemptively block certification of the results of Alaska’s Senate race if Republican incumbent Sen. Dan S. Sullivan loses his tight race against Democrat Mary Peltola next month. 
In a lawsuit filed in federal court Thursday, department officials described the candidacy of a third contender in the race — another Republican named Dan J. Sullivan Jr. — as a bid to mislead supporters of Sen. Sullivan into voting for the wrong candidate. 
They asked a federal judge to bar the state from certifying the race’s results, should the senator lose by a margin less than the number of votes his same-named challenger receives. In that scenario, the department said, the court should investigate whether that result was tainted by voter confusion. https://www.washingtonpost.com/national-security/2026/10/23/doj-seeks-block-alaska-senate-result-if-republican-incumbent-narrowly-loses/