Aesthetics is not a politics by accident but in essence. But this politics operates in the unresolved tension between two opposed forms of politics: the first consists in transforming art into forms of collective life, the second in preserving from all forms of militant or commercial compromise the autonomy that makes it a promise of emancipation. This constitutive tension sheds light on the paradoxes and transformations of critical art. It also makes it possible to understand why today's calls to free art from aesthetics are misguided and lead to a smothering of both aesthetics and politics in ethics.