Paris (CNN) — French Prime Minister Sebastien Lecornu resigned Monday just hours after he unveiled his new cabinet, in a shock move that plunged the country further into political crisis.

The prime minister – a key ally of embattled French President Emmanuel Macron – had not even been in office for four weeks, meaning he departs with the ignominious distinction of being the shortest-serving French prime minister since the Fifth Republic began.

It’s the clearest sign yet that Macron has run out of road. After five prime ministers in less than two years – none able to build a stable majority – the country looks exhausted and increasingly done with him.

Public frustration over austerity measures and a government seen as detached from everyday realities has only deepened. Macron himself st

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