When Donald J. Trump launched his presidential campaign on June 16, 2015, there was only one issue on his website: immigration. His position on immigration was notably conservative and exclusionary, with “Build That Wall” becoming a standard chant in his rallies. In many ways, this notion of a border wall that he embraced and promoted so passionately symbolizes his approach to American politics more broadly. In Trump’s America, there are many borders and walls and their primary function is to ensure that those on his side are whiter, safer, wealthier, and healthier than those on the other side.