Well before those messages surfaced publicly, Ingrassia was a vocal supporter of extremists like Nick Fuentes, a former dinner companion of President Donald Trump who has questioned the death toll of the Holocaust. Ingrassia has represented self-described misogynist Andrew Tate, an influencer facing rape and human trafficking charges overseas. His Substack account — where Ingrassia proclaims that he is “President Trump’s favorite writer” — reads like a white nationalist manifesto; in one post, he likened immigrants to “Barbarian hordes of criminal invaders” and warned that changing racial demographics could “break the cultural and social fabric” of the United States. In...