France's ruling Socialist party looks set to retain control of Paris as their candidate, Anne Hidalgo becomes the city's first female mayor.
President Francois Hollande's party is heading for a big defeat in local elections as the centre-right UMP claims victory. The far-right Front Nationale party of Marine Le Pen are also tipped to make several gains.
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Donald Trump is predicted to win the crucial Republican Indiana primary, US media have projected.