Chinese President Xi Jinping dominates the Chinese Communist Party leadership as no one else has since Mao. But Xi's total consolidation of power could create a succession crisis in the future.
Why it matters: Xi's erosion of established guidelines for succession creates uncertainty and puts China at risk for high-level power struggles in the future.
Details: In his book "Party of One," Wall Street Journal reporter Chun Han Wong documents Xi's rise to power, his purging of party officials to sideline rivals, and his remaking of the party with himself at the center.