“the primary is plenty interesting on its own. First of all, it will winnow a field of 48 candidates(!) down to four. Why four and not two? Because following the passage of an election-reform ballot measure in 2020, Alaska now uses a unique top-four primary system whereby all candidates (regardless of party) run on the same ballot and the top four finishers advance to the general election. (In a further twist, the general election will also use ranked-choice voting.) “
https://fivethirtyeight.com/features/everything-you-need-to-know-about-the-special-election-in-alaska/