Living on the border between Tennessee and North Carolina may seem like nothing more than a minor geographical oddity. But that’s only until the human element is factored into the equation. When that happens, the simple act of crossing a state line can change everything about a person’s political identity.

This is especially true in the year 2019, when the US is divided into tribes of hyper-partisan ideological warriors. We have always had a president, but until 2016 we have never had…