Last summer, politics, country music and cultural grievance collided with the growing popularity of a new song from recording artist Jason Aldean. In the lyrics, Aldean lists behaviors he associates with cities, like lawlessness and disrespect for the flag or the police. And then he warns listeners of the consequences if they “try that in a small town.” The song quickly hit the country music charts. Then, the music video was released. In it, images of Aldean singing alternate with newsreel footage of looting, violence and scenes from the racial justice protests that took place during the summer of 2020. The video was quietly edited to remove some of the more contested footage, but the battle lines had already been drawn. The song quickly gained popularity on the political right. And Republican primary candidates, including Donald Trump, began praising Aldean and playing the song at their events. And so as we were thinking about how to understand the G.O.P. presidential primary, we saw that Jason Aldean would be performing at the Iowa state fair. And we knew we had to go.