This article analyses Sartre's conflicting interpretations of human relationality in Critique of Dialectical Reason and Hope Now in order to demostrate two things. First, that the social dynamics leading to the formation of what Sartre calls “fused groups” and “fraternity-terror” are still at play in current manifestations of exclusionary and antagonistic conceptions of identity politics, which we contend constitute a risk for contemporary democracy. Second, that an alternative conception of “fraternity-without-terror”, whose foundations can be found in Sartre's latest reflections upon (...) the possibility of a normative ethics of reciprocity, can pave the ground to a fairer model of political solidarity. (shrink)