After the liberation of Hungary by the Red Army in 1945, the country prepared for general elections. The Hungarian Communist Party was very small, mostly composed by Communists that had survived the Nazi regime and the Holocaust in the Soviet Union and had returned to Hungary, almost all Jews. The Party, under the leadership of Rakosi (an assimilated Jew), took the decision to adopt a virulent anti-Jewish line, recruiting even former Hungarian Nazis (the Nyilas - Arrow - party). The Party also decided to enlarge its membership by recruiting "Kis-Nyilas" ("Small Nazis") individuals - that is, Nazi Party members who did not play any prominent role and carried the Nazi Party card mostly for career purposes. These Small Nazis seamlessly re-made themselves into Small Communists and continued to operate the administrative machine of the State. The Americans in Germany followed the same policy of co-opting former Nazis.
The Hungarian people was/is fanatically anti-Semite since ever, and had been recently brainwashed by the pre-war Nationalist (Admiral Horthy) and Nazi (Szalasi) regimes. The Communists' idea was to present themselves as the most anti-Semite party and so win the votes of the lower and middle class. The survivors of the Holocaust were a pitiful group of traumatized individuals, that returned from the camps and found no living relatives and their homes occupied by their neighbors. The terrible Communist propaganda campaign targeted these people as black-marketers, speculators, the cause of the economic crisis, agents of foreign powers (Britain and Palestine - Israel did not exist yet and Zionists were called Palestinians). There were forty "significant" pogroms in Hungary in the period following liberation, dozens were assassinated. Rakosi and the party members did not think themselves Jews, they considered themselves Communists without religion or nationality. How is that it did not occur to them that they were fomenting a wave of hate that ultimately would be focused on them and that they would be chased in the street and hanged on lamp posts (as it happened in the revolution of 1956)?
Even with their cunning political scheme, the Communists gathered few votes. They called Uncle Joe (Stalin) and the occupying Soviet Army installed them in the power. The proletarian dictatorship lasted ten years of sheer terror and then exploded the Revolution. The AVO political police HQ were sacked and their identities published. They were lynched one by one. I was there, I saw and remember the bodies on the streets.