The French left, including the Greens and radical left Jean-Luc Mélenchon's La France Insoumise, agreed to form a coalition on Monday evening. But the question remains as to who will lead the alliance into the battle of the snap elections called by President Macron.
But the left's determination has already reassured many politicians. "They can't back out of this, because the first person to do so will end up with their head on a spike," said Sandrine Rousseau, a prominent Green MP.