Laurent Fabius, France’s Foreign Minister, announced his departure from the post to the lower house of parliament. The 69-year-old has been nominated by President Hollande to become the next president of the Constitutional Council. 

Hollande’s government is set to see more “reshuffling” as the president attempts to grapple with his low approval rating. Christiane Taubira’s resignation as Justice Minister last month is not seen as part of the government shakeup proper.

The appointment of Fabius to the Constitutional Council may bolster the chances for the citizenship-stripping measure—which has already made it through the lower house of parliament—to pass legal muster.

On his way out, Fabius said that he regretted the rest of the world not following France’s lead when it came to dealing with Syria and Bashar al-Assad’s regime, and that he questioned the U.S.’s commitment where Syria is concerned. “There are words, but actions are different, and obviously, the Iranians and Russians feel that.”

Fabius has advocated heavily for progress on stopping climate change in the last two years, leading up to the COP21 summit, during which he chaired negotiations between 195 countries over a framework for dealing with rising temperatures and increasingly erratic weather patterns across the globe.

Environmental Minister Segoleone Royal and former Prime Minister Jean-Marc Ayrault are widely rumored as Fabius’s potential successors.