The kingmaker clan behind Xi Jinping Some 2,000km south of Beijing, the Ye family pulls the levers of power YU NAKAMURA, Nikkei staff writer GUANGZHOU -- Beijing, naturally, is where the action happens in China's political theater. But to really understand the country's complex power structure -- and the intense, ongoing struggle for supremacy -- it is also important to look backstage. That would be Guangdong Province, nearly 2,000km to the south. Influential figures have, at times, left the capital to build up their clout in Guangdong -- the country's largest economic zone, adjacent to Hong Kong. Chinese President Xi...