In picking Barnier, Macron has put his – and France’s – fate in Le Pen’s hands | Paul Taylor

After months of dithering, the French president's choice of prime minister leaves him more vulnerable than ever

Waiting two months for a new prime minister may be standard procedure for the Belgians, Dutch, Germans or Italians, inured to extended coalition negotiations, but to the French 50 days has seemed like an insufferable eternity. This was not the way things were supposed to be in the Fifth Republic, with a constitution framed in 1958 to deliver stable parliamentary majorities for a powerful president, Charles de Gaulle. Le general must be spinning in his grave.

His distant successor in the Elysee Palace, Emmanuel Macron, spent all summer dithering over a way out of the mess he created himself when he dissolved the national assembly and called a snap election in June. The option he finally chose on Thursday, bringing Michel Barnier, a conservative Gaullist former European commissioner, foreign minister and Brexit negotiator, out of retirement at 73 to lead a government, seems unlikely to offer a stable solution.