measures adopted by Stalin's successor, Nikita Khrushchev, Gheorghiu-Dej began to steer Romania towards a more "independent" path while remaining within the Soviet orbit during the late 1950s. Following the Twentieth Party Congress of the Communist Party of the Soviet Union, in which Khurshchev initiated De-Stalinization, Gheorghiu-Dej issued propaganda accusing Pauker, Luca and Georgescu of having been an arch-Stalinists responsible for the party's excesses in the late 1940s and early 1950s (notably, in regard to collectivization)—despite the fact that they had occasionally opposed a number of radical measures advocated by the General Secretary. After that purge, Gheorghiu-Dej had begun promoting PMR activists who were perceived as more loyal to his own political views; among them were Nicolae Ceauşescu, Gheorghe Stoica, Ghizela Vass, Grigore Preoteasa, Alexandru Bârlădeanu, Ion Gheorghe Maurer, Gheorghe Gaston Marin, Paul Niculescu-Mizil, and Gheorghe Rădulescu; in parallel, citing Khrushchevite precedents, the PMR briefly reorganized its leadership on a plural basis (1954–1955), while Gheorghiu-Dej reshaped party doctrine to include ambiguous messages about Stalin's legacy (insisting on the defunct Soviet's leader contribution to Marxist thought, official documents also deplored his personality cult and encouraged Stalinists to self-criticism). In this context, the PMR soon dismissed all the relevant consequences of the Twentieth Soviet Congress, and Gheorghiu-Dej even argued that De-Stalinization had been imposed by his team right after 1952. At a party meeting in March 1956, two members of the Politburo who were supporters of Khruschevite reforms, Miron Constantinescu and Iosif Chişinevschi, criticized Gheorghiu-Dej's leadership and identified him with Romanian Stalinism. They were purged in 1957, themselves accused of being Stalinists and of having been plotting with Pauker. Through Ceaușescu's voice, Gheorghiu-Dej also marginalized another group of old members of the PMR, associated with Constantin Doncea (June 1958). On the outside too, the PMR, leading a country that had joined the Warsaw Pact, remained an agent of political repression: it fully supported Khurshchev's invasion of Hungary in response to the Revolution of 1956, after which Imre Nagy and other dissident Hungarian leaders were imprisoned on Romanian soil. The Hungarian rebellion also sparked student protests in such places as Bucharest, Timișoara, Oradea, Cluj and Iași, which contributed to unease inside the PMR and resulted in a wave of arrests. While refusing to allow dissemination of Soviet literature exposing Stalinism (writers such as Ilya Ehrenburg and Aleksandr Solzhenitsyn), Romanian leaders took active part in the campaign against Boris Pasternak. Despite Stalin's death, the massive