Against those who wish to marginalise Deleuze's political relevance, this paper argues that his work – including and especially that produced before his collaborations with Guattari – is not only fundamentally political but also profoundly engaged with Marx. The paper begins by focusing on different possible strategies for contesting the claim that Deleuze is apolitical, attempting to debunk this claim by briefly considering Deleuze's work with Guattari. The bulk of the paper is concerned with a close examination of the appearance (...) of Marx in both Nietzsche and Philosophy and Difference and Repetition, establishing that the ‘pre-Guattari’ Deleuze was fully engaged with both politics and Marx and demonstrating that the concepts and arguments of the Marxist politics of the Deleuze–Guattari books can be traced back to Deleuze's own work. It is argued that an analysis of Deleuze's work on Marx is significant not only for deepening our understanding of Marx, but also for understanding the possibilities for Deleuzian politics. (shrink)