If anyone in the future cares enough to write an authentic history of the 2024 presidential campaign, they might begin by noting that American politics exists downstream of American culture, which is a deep and broad river. Like any river, American culture follows a particular path, which has been reconfigured at key moments by new technologies. In turn, these technologies, which redefine both space and time—canals and lakes, the postal system, the telegraph, railroads, radio and later television, the internet, and most recently the networking of billions of people in real time on social media platforms—set the rules by which stories are communicated, audiences are configured, and individuals define themselves.