This article critically examines the transition from Marx to Spinoza within Antonio Negri’s postoperaist thought and explores a potential alternative rooted in Mario Tronti’s concept of the ‘autonomy of the political’. In Negri’s postoperaismo, the embrace of Spinoza reevaluates Marx’s critique of political economy through an optimistic lens, suggesting a tendency beyond capitalism. However, Negri’s embrace of a Spinozian plane of immanence entails a problematic affirmation of what exists. The article argues that Negri’s worldview, despite its beginnings, ends up resembling (...) deterministic historical materialism. While critical theory exposes flaws in Negri’s theory, it falls short in providing a practical alternative. Returning to Negri’s interpretation of Spinoza’s Political Treatise uncovers earlier arguments, rooted in paradoxes inherent to practical politics. However, reliance on the concept of the multitude highlights deeper issues in Negri’s approach. Rather than adhering to postoperaismo or critical theory, the article suggests an alternative in Tronti’s journey from operaismo, particularly in the concept of the ‘autonomy of the political’. Notwithstanding critiques, this attempted liberation from Marxist determinism allows for a clearer confrontation with politics. The article concludes that Hardt and Negri’s recent critical engagement with this concept advances their arguments but does not entirely overcome inherent limitations in their approach. (shrink)