A head to head comparison of the Kentucky 2020 Primary gives us an idea of the break down of the voters.
Donald Trump got 43% (372k) of the vote to beat Joe Bider (365k votes) by 42% and Bernie Sanders (65k votes) by 8%.
Donald Trump wins 80 out of the 120 counties in the state of Kentucky. Biden trailed behind Trump winning 40 counties with Biden winning nothing in Kentucky Primary.
These 10 counties play an important role in these primary elections. Jefferson county contains nearly 3 times as many votes as the next highest county (Fayette). Winning Jefferson county is advantageous to winning the Primary election in the state of Kentucky.
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 (85%) beats Bernie Sanders (15%). Donald Trump (50%) beats Joe Biden (49%). Donald Trump (85%) beats Bernie Sanders (15%).
Joe Biden won the highest percentage of votes in the top county (Jefferson) in the state of Kentucky over Donald Trump but not obtained enough votes in the other counties to beat him in the 2020 Primary election in the state of Kentucky. Donald Trump achieved a majority vote in other populous counties, securing him the victory over his opponents.