When President Donald Trump tweeted that “Dems want to shut your churches down, permanently,” he committed political fraud. At least, that is the lesson drawn from a recent article on false political speech that undermines the electoral process by intentionally misleading voters. In this article, Martin H. Redish and Julio Pereyra argue that, in limited circumstances, political fraud ought to be one of the exceptions to the First Amendment’s guarantee of the right to share information and opinions without government interference. Their analysis depends on a basic assumption about the purpose of the First Amendment. Redish and Pereyra adopt the view of the U.S. Supreme Court that one goal of the First Amendment is to ensure a functional de...