On 9 November, just after he returned from a trip to China, Mladenov and his colleagues persuaded Zhivkov to resign (under threat of execution), which he did the next day. Mladenov was then elected to Zhivkov's old posts as general secretary of the party and chairman of the State Council. The latter post was equivalent to that of president. Having seen the overthrow of the other Eastern Bloc governments, Mladenov embarked on a much more open government policy in hopes of bringing about change from above. In his first address to the Central Committee as the country's leader, he stated that there was "no alternative to restructuring" both the economy and the political climate, which in their previous forms had "handicapped progress in our society in all spheres". He also stated his commitment to making Bulgaria "a modern, democratic, and lawful country". To that end, he let it be known that he supported free elections, a greater role for the legislature and other reforms. Despite Mladenov's promises of reforms, the people took to the streets almost every day to demand greater freedom. Bowing to the inevitable, on 11 December Mladenov announced in a nationally televised speech to party leaders that the Communist Party had to give up its guaranteed right to rule. The BCP's position in the state, he said, could no longer be "declared administratively", but instead had to be earned "from the trust of the people". To that end, Mladenov declared that the BCP had to "adopt the principle of a multiparty system". He also called for multiparty elections by the spring of 1990. Three days later, on 14 December—the same day that Zhivkov was expelled from the party—the BCP's Central Committee asked the National Assembly to delete the provisions of the Zhivkov Constitution that enshrined its leading role. The Central Committee also endorsed early elections in the spring. Those elections were held in June 1990. The final legal step in ending Communist rule in Bulgaria came on 2 January 1990; when the National Assembly amended the constitution to remove Article 1, which enshrined the Communist Party's leading role. However, for all intents and purposes, Communist rule had ended a month earlier when the Central Committee formally renounced its guaranteed right to rule. On 2 February, in an effort to change the party's image ahead of the upcoming elections, the office of general secretary was replaced by the office of party chairman. Mladenov stood down as party leader, and Alexander Lilov was chosen to take the new office.