Philippe stood ready to defeat Le Pen. Now his allies are doubting his chances.

PARIS — Edouard Philippe was once seen as the only man capable of defeating Marine Le Pen in next year’s French presidential election. But his lackluster campaign as the country’s voice of reason is putting his allies on edge — and some of them are starting to wonder if he has what it takes. The former center-right prime minister promised a “massive” campaign platform that would fix France, put its finances back on track and restore the country’s standing in the world. And while Philippe has upped his campaign tempo in recent weeks, his proposals tend to fall flat. POLITICO spoke to six members of Philippe’s political family, some of them campaign team members, who shared doubts about his strategy and chances of success.