Who's Xi Jinping's 'right-hand man', Cai Qi, set to attend BRICS Summit in Delhi?

Chinese President Xi Jinping's 'right-hand man', Cai Qi, who's set to attend the BRICS Summit in Delhi, is considered a close confidant of Xi and a powerful figure in the Communist Party of China. Cai Qi is the first-ranking member of the CPC Secretariat. He also reportedly serves in the National Security Commission, a secretive body led by Xi.