The convening of a joint congress in Versailles is a measure normally associated with times of crisis.Read more
In an apparent swipe at the US president, the pair vow to "make the planet great again" in a video post.
Emmanuel Macron has become France's youngest-ever President at the age of 39. He created a new political movement out of nothing and defeated the populist Marine Le Pen of the Front National. But who is the former banker and civil servant and how did he rise so far so fast? The BBC's Paris Correspondent Lucy Williamson speaks to his old friends, his biographer, his voice coach and his political colleagues to find out how this son of two provincial doctors - who once dreamed of being a novelist or actor - has made it to the top of French politics.