Zambia's president sworn in despite court challenge
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President Edgar Lungu of Zambia has taken the oath of office after the nation's top court rejected an opposition petition to block the ceremony.
Lungu, who was re-elected last month in a closely contested vote, was sworn in Tuesday at an event attended by regional leaders, including Robert Mugabe of Zimbabwe and Ian Khama of Botswana.
Lungu had averted a runoff election by winning just over 50 percent of the votes, but the opposition under challenger Hakainde Hichilema alleged there were polling irregularities and went to court.
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The political tension was exacerbated by Zambia's economic struggles, which are fueled by the fall in prices of copper, its main export.