A head to head comparison of the Alaska 2020 Primary gives us an idea of the break down of the voters.
Joe Biden received 55% (10.8k votes) beating Bernie Sanders who had 45% (8.7k votes). There was no Presidential Primary for the Republican Party in the State of Alaska, thus there are no results for President Trump at the Primary level.
Joe Biden won 1 out of the counties in the state of Alaska. There was no Presidential Primary Elections for the Republican Party.
These 10 counties play an important role in these primary elections. These 10 counties are similar in voter populations, especially the first 7 counties.
Bernie Sanders vs Joe Biden
In a head to head match up on just the total number of votes, Bernie Sanders (55%) beats Joe Biden (44%).
Joe Biden won hugely in nearly every county in the state of Alaska, securing him most of the votes and thus the victory in the 2020 primary elections in the state of Alaska. Donald Trump achieved no recorded number of votes out these three candidates. There was no Presidential Primary for the Republican Party in the State of Alaska, thus there are no results for President Trump at the Primary level.
Related References: 2016 Alaska General Election Story, 2016 Alaska Primary Election Story