Stalin’s embrace of Nazi ideology signified a convergence of totalitarian rivals.

Evidence

The open, unashamed adoption of what had become to the whole world the most prominent sign of Nazism was the last compliment Stalin paid to his late colleague and rival in total domination with whom, much to his chagrin, he had not been able to come to a lasting agreement. — Hannah Arendt, The Origins of Totalitarianism, 55

Categorization

• XREF: Supports Arendt’s larger thesis that Nazism and Stalinism converge as structurally totalitarian despite ideological opposition — relevant to later critiques of equating the two totalitarianisms. — connects to: Stalin scaled up Soviet propaganda after learning from Nazi pervasiveness — Tim Wu, The Attention Merchants, 427