Chairman Mao Zedong was the undisputed ruler of Communist China from its beginning in 1949 and held three Chairman offices at once: Chairman of the Communist Party of China, Chairman of the Central Military Commission and Chairman of the People's Republic of China, making him the leader of the party, military and state, respectively. Following the Cultural Revolution, a rough consensus emerged within the party that the worst excesses were caused by the lack of checks and balances in the exercise of political power and the resulting "rule of personality" by Mao. Beginning in the 1980s, the leadership experimented with a quasi-separation of powers, whereby the offices of general secretary, president and premier were held by different people. In 1985, for example, the CPC General Secretary was Hu Yaobang, the Chinese President was Li Xiannian and the Chinese Premier was Zhao Ziyang. However, Deng Xiaoping was still recognized as the core of the leadership during this period. Both Hu and Zhao fell out of favour in the late 1980s, but Deng was able to retain ultimate political control. The paramount leader label has been applied to Deng's successors, Jiang Zemin and Hu Jintao, though it is generally recognized that they did not wield as much power as Deng despite their having held more offices of leadership. There has also been a greater emphasis on collective leadership, whereby the top leader is a first among equals style figure, exercising power with the consensus of the Politburo Standing Committee. This was particularly apparent during the tenure of Hu Jintao. Beginning in 1993, Jiang formally held the three offices that made him the head of the party, state and military:
When Jiang left the offices of General Secretary and President in 2002 and 2003, respectively, he held onto the position of Chairman of the Central Military Commission. Military power had always been an important facet in the exercise of political power in Communist-ruled China and as such holding the top military post meant that Jiang retained some formal power. When Jiang stepped down from his last formal post between 2002 and 2004, it was ambiguous who the paramount leader was at the time. Hu Jintao held the same trio of positions during his years in power. Hu transitioned all three positions onto his successor Xi Jinping between November 2012, when Xi became General Secretary of the Communist Party and Chairman of the Central Military Commission; and March 2013, when Xi became president. Since Xi's ascendance to power, two new bodies, the National Security Commission and Central Leading Group for Comprehensively Deepening Reforms, have been established, ostensibly concentrating political power in the paramount leader to a greater degree than anyone since Deng. These bodies were tasked with establishing the general policy direction for national security as well as the agenda for economic reform. Both groups are headed by the General Secretary.