The arrest of a casino mogul is sending shockwaves through China’s political ecosystem. The event might foreshadow Chinese leader Xi Jinping’s new political storm targeting his opponents, according to a China expert in exile. Police detained Macau-based casino tycoon Alvin Chau, whose gambling business generates more than $157 billion annually, along with his 10 followers on Nov. 27 on charges of operating illegal betting and money laundering in mainland China, according to multiple media outlets. The response of Macau police came one day after the public security department of eastern China’s Wenzhou city, Zhejiang Province, stated in a notice that the local procuratorate had issued a warrant for Chau’s arrest. The notice said that Chau’s cross-border gambling group had grown into a syndicate with 199 shareholder-level agents, more than 12,000 casino agents, and a membership of over 80,000 in China by July 2020. Every year, online platforms that his group …