His landslide victory has been hailed by EU leaders such as Jean-Claude Juncker and Donald Tusk, who said they were "rejoicing" after hearing the news.

But his triumph also casts a shadow over Theresa May's Brexit ambitions, as the newly elected President vowed to be "tough" on Britain earlier this year if it left the bloc.

Jean Pisany-Ferry, a senior Macron adviser, has said that the president will be "tough" on Brexit negotiations but will not seek to "punish" the UK for quitting the bloc.