Sources: Wikipedia (election results)
Trump is Terrible for Rural America, by Paul Krugman. (The New York Times, 5/9/2019)
What, after all, is Trumpism? In 2016 Trump pretended to be a different kind of Republican, but in practice almost all of his economic agenda has been G.O.P. standard: big tax cuts for corporations and the rich while hacking away at the social safety net. The one big break from orthodoxy has been his protectionism, his eagerness to start trade wars. And all of these policies disproportionately hurt farm country.
The Trump tax cut largely passes farmers by, because they aren’t corporations and few of them are rich.