What were the limits of the "thaw" introduced by Khruschev after he had succeded to power in the U.SS.R?

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… important mark in Soviet politics. Stalinist ideas were abolished and many of Lenin's resurrected. He 'strongly favored increased, though controlled, popular participation.' Some say that he was in essence a populist. The factors mention above are the cause of his failure to fully bring about the Thaw of the Cold War. Yet, it was not all his fault, but also the paranoia of the West and the competition for world power.