Just days ahead of a crucial vote on whether the European Treaty on Stability, Cooperation and Governance (TSCG), otherwise known as the Fiscal Pact, should be ratified, the French Left is deeply split on the issue. Socialist prime minister Jean-Marc Ayrault says that if the treaty is not ratified the very future of the euro would be at stake. But a number of MPs on the left of the Socialist Party and from the Greens and radical-left Front de Gauche are bitterly opposed to it, claiming it is simply a charter for permanent austerity. Already there has been a well-attended protest march against the treaty, with some demonstrators even accusing President François Hollande of 'betraying' them over the issue. Though the National Assembly is certain to back the ratification anyway because of support from the Right, the issue is seen as a major test of the prime minister’s and president’s authority. Lénaïg Bredoux and Mathieu Magnaudeix report on the political headaches the treaty is causing the government while Mathieu Magnaudeix and Liza Fabbian take the temperature from the street protests.