That was Joe Miller. She won as a Republican write-in candidate (2010). The way the Alaska law was at the time, a candidate who lost their primary could run as a write-in, and write-in candidates in Alaska could still claim a party.
But this time around, there is no party primary at all, so she no longer even needs to throw crumbs to the base. There is a jungle primary of all candidates and the top 4 go on to the general election. Then, there is now also ranked-choice voting. Murkwoski is very much still in the hunt - virtually no one could vote for her as their first choice and she could still win.
thanks for the info