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Half a million people received duplicate polling cards in the post, which would allow them to cast two votes at the first round of the election, held on April 23.

French authorities confirmed they would not be investigating the potential electoral fraud until AFTER the election, when retrospective prosecution may take place.

This could crush Ms Le Pen’s dreams of surging to power, as most French nationals living outside of their country are not right wing - demonstrated by the fact many feel they depend on the European Union (EU) to guarantee their stay in foreign countries.

Some of those who received duplicate voting forms while living in France may wish to back another candidate.