A leading Communist Party research group has invoked the legacy of China’s former leader Jiang Zemin in a call to rally round President Xi Jinping. The article by the Institute of Party History and Literature, published on Sunday in the party’s mouthpiece People’s Daily, formed part of the commemorations of the centenary of Jiang’s birth and highlighted the importance of supporting the leadership in the face of economic or geopolitical difficulties. “Under the party’s third-generation leadership...