When Macron announced that he was going to visit striking workers at a factory in eastern France who were fighting against the closure of their workplace and its transfer to low-wage Poland, Marine Le Pen rushed to get there before him, promising the workers they'd keep their jobs in France, and taking selfies with them, before leaving to the sound of applause. "Your victory is a victory for a strong and united Europe and for French-German friendship". "We need to talk to France about its real problems", he said.
"Clearly there are many challenges for this important relationship that exists at the heart of the European Union", he said. "Happy that the French chose a European future".
But if another party wins a majority, the new president could be pressured to choose a prime minister from that party, a situation the French call "cohabitation".
Theresa May, UK prime minister, also congratulated Macron.
On Monday, though, Hollande gripped Macron's arm before the two men walked side by side and then announced the transfer of power would take place on Sunday, a week after the election.
France went to polls to elect a new president on Sunday, 7th May.
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IN PICTURES: Macron - "Tonight, you won".
The vote was the best electoral result ever obtained by her National Front party, which was established in the 1970s by her father, the Holocaust denier Jean-Marie Le Pen, who has multiple convictions for inciting racial hatred against Jews. "Macron will be Juncker's puppet".
France's President-elect Emmanuel Macron was caught practising his victory speech and having his makeup retouched by millions after TV channels accidentally broadcast a live feed ahead of schedule.
"The citizens of France entrusted you to lead the country in a hard period for Europe and for the entire world community".
The telegram went on: "In these condition it is especially important to overcome mutual distrust and join forces to ensure worldwide stability and security".
France's youngest president faces the daunting task of reuniting a troubled and divided nation riven by anxieties about terrorism and chronic unemployment and ravaged by a bitter campaign against defeated populist Marine Le Pen.
Adding to the tensions, alleged cyberattacks on Macron's campaign were linked to Russia and his supporters accused Russian state media of trying to smear the candidate.