Politics

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Zimbabwe's opposition party on Friday challenged results that say its leader, Morgan Tsvangirai, has won the first round of the presidential election with 47.9 percent of the vote -- but not enough to avoid a runoff against President Robert Mugabe.

Zimbabwe's electoral commission is presenting initial results from the March 29 presidential vote to the candidates on Thursday, a day after international media outlets reported the opposition party won the vote by a four-point margin.