PARIS - France's biggest trade unions on Sunday issued warnings over the victory of Emmanuel Macron in the country's presidential election, with one union calling for a demonstration on May 8. The CFDT, France's biggest union, welcomed Macron's victory in a statement but added that the National Front's score was still too high. 'Now, all the anxieties expressed at the ballot by a part of the electorate must be heard. The feeling of being disenfranchised, of injustice, and even abandonment is present among a large number of our citizens. The CFDT calls on Emmanuel Macron not to turn a deaf ear to this despair,' it said. The CGT, one of the country's more militant unions, called for a demonstration in Paris on May 8 to mark the start of Macron's presidency in protest against 'liberal' economic policies.