Trans-exclusionary dogma is the political quicksilver of our moment. Impossibly dynamic, these politics can assume the shape of any container—policies, religious beliefs, nationalist sentiment, laws—they inform. Indeed, it is the deeply mercurial nature of trans-exclusionary perspectives that makes them so pernicious. They can undergird, at once, calls for a putatively stabilizing return to traditional gender roles in the home and the state and demands for greater legal and policy-based protections for girls and women in sport, employment, and state services; anti-colonial critique and imperialist nationalisms; and biological essentialisms and the explosion of gender norms. To account for the breadth and diversity of trans-exclusionary politics of various kinds would require several years' worth of additional special issues, but even then, because these politics are so labile, so responsive to the conservative political whims of the moment, we have no doubt but that they will continue to take new form and shape new and emergent ideological entrenchments.We thus decided to conclude this special issue with a “forum,” a collection of shorter pieces that we hoped would broaden the scope of the questions, movements, and histories that this special issue addresses. We received many proposals in response to this special issue's call for papers that were not quite article length but that brought important breadth and depth to the qualitative and lived experience of trans-exclusionary politics. In what follows we present readers with an assemblage of what we have come to think of as important one-offs, which offer both short and more sustained opportunities to think about the landscape of these politics in different grounded contexts. Mat Thompson's piece, “Choosing Threat, Embodying the Viral,” homes in on the rhetoric of contagion that pervades trans-exclusionary political rhetoric.1 Instead of asking how trans people might resist any association with the epidemic, especially during times of a global pandemic, they argue that we should embrace the viral and the dangerous as a means of politics. Hidenobu Yamada narrates the fortunes of trans-exclusionary feminist politics in Japan, elaborating how gender identity disorder—GID—came to be hallowed as a state-sponsored form of experience supplanting other, differently capacious understandings of gender diversity that more directly challenge nationally codified norms around family and kinship. On a related note, Ezra Berkley Nepon offers a report from their longtime work in LGBT philanthropy, detailing the development of global philanthropic organizing specifically aimed at accounting for and circumventing the growing power of trans-exclusionary politics in both state-based and private forums. Jo Krishnakumar and Annapurna Menon's dialogue addresses similar concerns on a more local level, offering a dialectical reflection on each of their experiences of more implicit forms of transphobia or trans-exclusionary politics in feminist organizing spaces in their home of the United Kingdom, even or especially in political movements that do not specifically dedicate themselves to trans politics. Gina Gwenffrewi, on the other hand, reflects on the experience of being an academic and journalist seeking to interrupt implicitly and explicitly trans-exclusionary narratives in the UK press within the context of a media culture that has been famously unwilling to consider perspectives by trans people or anyone else advocating for trans political justice. Finally Sophie Lewis and Asa Seresin offer a critical meditation on some of the not incidental but rather crucial historical sympathies between feminisms and fascisms, drawing critical attention to the fact that these politics are not so strange, as bedfellows, as we might want them to be.Together, these pieces represent a widening and diversifying of the conversation around global trans-exclusionary politics and their imbrication in right-wing movements of various stripes that this special issue seeks to establish with its seven article-length pieces. We hoped that, by including a forum, we could encourage the inclusion of a wider range of topics, as well as a series of responses that would provide a place for casual, colloquial, first-person, experiential understandings of the long arm of trans-exclusionary politics on a global scale. The short pieces that follow represent an extremely eclectic series of responses: some informational, some more theoretical, some reflecting on past experiences, some calling for specific models of future action. What unites them, to our mind, is how they import a more granular and emplaced understanding of the fortunes of trans-exclusionary politics in specific places, forums, and communities. Unfortunately, what also unites them is that, taken as a whole, they truly reveal the terrifying extent, reach, and hydra-headed evils of these politics. From Japan to Croatia, England to the United States, trans-exclusionary coalitional politics have exploded beyond the fairly tight range of sites where, for many years, we expected to find them, such as certain radical lesbian communities, university philosophy departments, and proposals for legal protections for lesbian, gay, and bisexual people. We find trans-exclusionary politics—whether they take the form of trans-exclusionary feminisms, “gender critical” feminisms, or anti-gender approaches to the organization of family and state—in local, domestic, national, and international structures all over the world: in local and state ordinances regulating health care; in anti-imperial and anti-colonial writing; in nationalist propaganda; in local and national education policy; in international religious and anti-religious doctrine; in right-wing movements of all stripes; and, of course, in some feminisms, just to name a few. This forum represents only a handful of possible approaches to the vast global rhizome of trans-exclusionary politics. While the pieces that follow will not, of course, settle these questions, they importantly broaden the scope of the inquiry and lay important foundations for future strategizing.