The Department of Justice filed an extraordinary lawsuit seeking to block Alaska from certifying the winner of its upcoming U.S. Senate election if incumbent Republican Sen. Dan Sullivan loses.The lawsuit, filed Thursday, cites what it suggests is likely voter confusion from having another Republican candidate, named Daniel J. Sullivan, on the ballot in the race, and the chance that could help Democratic nominee Mary Peltola win what is expected to be a close election with the incumbent senator.US President Donald Trump, left, and Senator Dan Sullivan, a Republican from Alaska, during a campaign event in Wasilla, Alaska, US, on Tuesday, Oct. 13, 2026. Nathaniel Wilder | Bloomberg | Getty ImagesThe Alaska race is one of several Senate contests around the United States that could determine whether Republicans retain their slim majority in the upper chamber of Congress. Alaska's general election for the Senate is conducted by ranked-choice voting. Voters rank their candidates in order of preference.Read more CNBC politics and policy coverage"Should Alaska certify any electoral results tainted by the inclusion on the ballot of Daniel J. Sullivan — whose candidacy, Defendant Beecher [Al...











English (US) ·