In China, under the current country's constitution, the Chinese President is a largely ceremonial office with limited power. However, since 1993, as a matter of convention, the presidency has been held simultaneously by the General Secretary of the Communist Party of China, the top leader in the one party system. The presidency is officially regarded as an institution of the state rather than an administrative post; theoretically, the President serves at the pleasure of the National People's Congress, the legislature, and is not legally vested to take executive action on its own prerogative.