A head to head comparison of the Oklahoma 2020 Primary gives us an idea of the break down of the voters.
Donald Trump got 48% (274k) of the vote to beat Joe Bider (118k votes) by 21% and Bernie Sanders (77k votes) by 14%.
In the Primary, Donald Trump won all 77 counties in the 3-way match up, with Bernie Sanders and Joe Bider winning nothing in Oklahoma Primary.
Bernie Sanders vs Joe Biden
Joe Biden vs Donald Trump
Donald Trump vs Joe Biden
In a head to head match up on just the total number of votes, Joe Biden (60%) beats Bernie Sanders (40%). Donald Trump (70%) beats Joe Biden (30%). Donald Trump (78%) beats Bernie Sanders (22%).
These 10 counties play an important role in these primary elections. Winning from among these 10 counties is essential to securing the victory in the primary elections in the state of Oklahoma.
Donald Trump won the most votes in the state of Oklahoma. Joe Biden and Bernie Sanders won fewer votes. Donald Trump won all counties, hence allowing him to win the primaries in Oklahoma.