Zambian Hopeful Takes a Swing at ChinaPresidential Challenger Stirs Resentment at Asian Power’s Growing Influence in AfricaBy Joseph J. SchatzSpecial to The Washington PostMonday, September 25, 2006; A16LUSAKA, Zambia — Making a living is never easy in Kamwala, the cramped, grimy but bustling marketplace in downtown Lusaka, where Nally, a middle-aged mother of five, has been selling clothes out of a small wooden stall for the past 15 years.But things took a turn for the worse, she said, when the Chinese moved in down the block a few years ago.Chinese retailers operating in Kamwala have undercut her prices and lured...