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AT THE START OF THE 1990S, THE CONSTITUTIONAL STATUS OF opposition movements in tropical Africa was dramatically transformed. Prior to 1990, in only a minimal number of states had legally tolerated opposition parties even been permitted, while in no case had any opposition party been able to assume power after defeating the incumbent government at the polls. Within a few years, multi-party systems were introduced within almost all African states, while several opposition parties achieved the ultimate test of gaining state power by electoral means. At first sight, at least, opposition in Africa had undergone a radical shift, bringing the continent into line with a movement towards multi-party electoral political systems that was taking place throughout the world.
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Christopher Clapham (1997) studied this question.
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