Ernesto Laclau (1935–2014) was an Argentine political theorist whose collaboration with Chantal Mouffe across four decades produced one of the most influential bodies of work in post-Marxist political theory. Born in Buenos Aires, educated at the University of Buenos Aires and Oxford, Laclau spent most of his career at the University of Essex, where he founded and directed the Centre for Theoretical Studies in the Humanities and Social Sciences. His collaboration with Mouffe, his partner intellectually and personally, produced Hegemony and Socialist Strategy (1985) — a foundational text that rethought Marxist politics through post-structuralist discourse theory — and shaped an entire generation of political thinking about populism, hegemony, and democratic struggle. His solo works, including On Populist Reason (2005), extended the framework toward an analysis of populism as a political logic rather than a specific ideology.
The Laclau-Mouffe partnership transformed political theory by severing the concept of hegemony from class essentialism. In classical Marxism, hegemony was the means by which the ruling class maintained its dominance; the political project was to replace bourgeois hegemony with proletarian hegemony. Laclau and Mouffe argued that political identities are constructed through discourse rather than determined by economic position, and that hegemony is the general mechanism through which any political order is constructed — not merely class rule.
The framework's implications for contemporary political struggle are substantial. There is no privileged historical subject of emancipation. Political subjects — workers, women, racial minorities, LGBTQ people, ecological activists, and now the populations affected by the AI transition — are constructed through articulation in discourse. The project of radical democracy is to construct broad democratic coalitions among multiple political subjects whose struggles are not reducible to one another but whose democratic demands can be articulated into a common political will.
Laclau's solo work on populism — developed most fully in On Populist Reason — argued that populism is not a specific ideology (left or right) but a political logic through which a collective will is constructed around the construction of a political frontier between 'the people' and their adversary. The logic is compatible with both democratic and authoritarian politics; the question is which version prevails. Mouffe extended the framework in For a Left Populism (2018), arguing that democratic forces needed to construct a left populist project to contest right populism on the same terrain of popular mobilization.
The framework's relevance to AI governance is mediated by Mouffe's more specific engagements with technology, but the underlying commitments apply directly. The populations affected by the AI transition are multiple and diverse — their struggles are not reducible to a single political logic, but their democratic demands can be articulated into a common political project contesting the institutional arrangements of the transition.
Born in Buenos Aires, educated at the University of Buenos Aires and Oxford, Laclau held his position at Essex from 1973 until his death in 2014. His intellectual trajectory moved from classical Marxism through Althusserian structuralism to the post-Marxist framework developed with Mouffe.
Discursive construction of political identity. Political subjects are articulated through discourse, not given by economic position.
Hegemony as general mechanism. Every political order is hegemonic; the question is which hegemony and through what process constructed.
Populism as political logic. Populism is a structure of political mobilization, not an ideology — compatible with democratic or authoritarian content.
Chain of equivalence. Diverse democratic demands can be articulated into common political will without reduction to a single struggle.