The articles analysed in this paper reflect a turning point in the evolution of German radicalism. For the first time, leftists doubt publicly the very foundations of their ideology — the concepts of fascism and racism — as a possible key for understanding Nazism. They discover their own ‘negation of history’, after having criticized that of their fathers, and react with a massive ‘anti-Jewish impulse’, revealing thus some of the mechanisms of left-wing antisemrtism.