This paper explores the role played by job precariousness in political orientations, and examines the extent to which job precariousness could represent a new political division in Italian society. We have investigated the explanatory role of job precariousness for political orientations and analysed its interaction with the declining traditional cleavages (territory, class, religion). Based on a national sample of 15,000 workers, our results provide some evidence that job precariousness is a social variable exerting a significant impact on political orientations. Furthermore, we found that different conditions of job precariousness, such as temporary work and unemployment, affect political attitudes in different ways. Finally, our evidence suggests that the relationship between job precariousness and political orientations is significantly influenced by territory and class.