This book was impressive. I‘m originally from AZ where the border has always loomed large, where cries for a wall and undue discrimination toward Mexicans and anybody who vaguely looks Latino is a staple. Grandin does an impeccable job tracing the origins of the current anti-immigration, anti-social rights, neoliberal economic, militarist order expressed currently through Trumpism in the disappearance of the frontier or subsequent frontiers.