He must pull together a majority of lawmakers for the party to run in the mid-June legislative election.
We welcome the Emmanuel Macron as new French president.
There is scepticism however about Macron's ability to win a majority with En Marche candidates, meaning he might have to form a coalition.
But for the first time in the country's post-war history, France's new leader does not have a big party machine behind him, after the two main parties, the Republicans and Socialists, crashed out in the first round of the presidential election.
Macron's positions on Israel, its conflict with the Palestinians and the Middle East in general correspond with those of the government of France's outgoing president, Francois Hollande, Macron told a predominantly Jewish crowd in March during a town hall meeting organized in Paris by CRIF.
Macron, who is 39, will be the youngest leader of France since Napoleon ruled in the country around the start of the 19th century.
On Monday, he appeared alongside the man he will succeed as president, President Francois Hollande, at the commemoration of Victory in Europe day on May 8, 1945.
Sen. John Cornyn On Short List To Lead FBI After Comey's Firing
Cornyn, 65, is the Senate majority whip and formerly served as a Texas attorney general and state supreme court justice. Michael McCaul, R-Austin, the chairman of the House Intelligence Committee who toyed with running against Sen.
According to Le Monde, a quarter of registered voters did not show up to vote, making the turnout of 75 percent the lowest recorded in any final round of the presidential elections since 1969.
Monday also marked decades of peace in Western Europe, something Macron made a cornerstone of his campaign against Le Pen's brand of populism.
Marine Le Pen has congratulated Macron on his victory.
Sylvie Goulard, a French deputy to the European Parliament, said Mr Macron would make Berlin his first official visit, with perhaps a stop to see French troops stationed overseas as well.
His party chief, Richard Ferrand, said on Monday Macron's 'En Marche!' (Forward!) movement would change its name to "En Marche la Republique" or "Republic on the Move", so as to structure itself more like a traditional party.
Le Pen responded to defeat by vowing she would lead her anti-immigration National Front (FN) strongly into the legislative elections. In interviews Monday, National Front officials said the party founded by her father would get a new name to try and draw in a broader spectrum of supporters.
"Well aware that many voices have been raised in favor of the candidate of the National Front, the Chief Rabbi calls on all political leaders to take seriously the voters' cry of despair and anger in order to review their platforms and to regain the enthusiasm and support of the citizens", the statement by Korsia's office read.