Events such as the trial of Wei Jingsheng signalled writers that there were limits to the open discussion of the past errors of the Party, and after the end of the trial of the Gang of Four, the political climate chilled significantly.[10] Eventually, the government began to crack down on scar literature as part of a wider campaign against "bourgeois liberalism".[11] Deng Xiaoping himself provided major support for the campaign, even though his return to Chinese politics after his earlier disgrace and his political victory over rival Hua Guofeng relied heavily on the repudiation of Maoism inherent in scar literature, and its influence on public opinion.[3][11] The campaign against scar literature was itself unusual in that, unlike earlier campaigns against liberalism, official criticisms were generally limited to attacks on its content, rather than denunciations of individuals.[12]