Missouri is the most divided: The easternmost western state, westernmost eastern state, southernmost northern state, and northernmost southern state.
Which shows that it is shameful that MO is not a swing state.
It was...
Unfortunately, rural Missourians love populism just a bit too much. Of both the left and right varieties. We're probably the only state that would ever vote R for President by 19 points and then vote to repeal a right-to-work law and raise the minimum wage to $12 by even bigger margins two years later.
If Bernie had been the 2016 nominee, this state would have been a battle royale. The combination of his economic populism + generally not talking too much about "culture war" issues made him do very well in rural areas in the 2016 primary.