Socialist mayor of Paris Anne Hidalgo, who is openly hostile to Macron, is virtually certain to be re-elected, after a disastrous campaign by the president’s LREM party. Photograph: Getty Images

The second round of French municipal elections on Sunday is likely to be a humiliation for President Emmanuel Macron, whose party La République en Mar(...)

Ironically, Macron’s internal problems are mounting just at the point where some of his signature policies are starting to show clear signs of success. Photograph: Ludovic Marin/AFP via Getty Images

French president Emmanuel Macron might well have assumed his party’s preparations for next month’s local elections could not get any worse. That was u(...)

 Mathematician and politician Cedric Villani. It’s hard to see how Emmanuel Macron’s party could endorse Villani, two weeks after it expelled him for insubordination. File photograph:  Eric Fougere/Corbis via Getty Images

The dissident candidate for mayor of Paris, Cédric Villani, expressed support for his former rival Benjamin Griveaux, less than two hours after Emmanu(...)

Benjamin Griveaux, La Republique en Marche’s candidate for the Paris 2020 mayoral election, announces his withdrawal from the campaign on Friday. Photograph: Lionel Bonaventure/AFP via Getty Images

French president Emmanuel Macron’s La République en Marche on Friday scrambled to find a replacement candidate to represent the party in Paris for the(...)

 Candidate for the Paris 2020 municipal election Benjamin Griveaux. Photograph: Ian Langsdon/EPA

To understand the stakes in France’s municipal elections next month, it helps to recall Emmanuel Macron’s May 2017 presidential victory, when he swept(...)

Cédric Villani: “This will be an opportunity to elaborate on the power of mathematics to access otherwise inaccessible scales.” Photograph: Sebastian Godefroy

Mathematics can help us see the invisible and imagine the incomprehensible. It can help us in a theoretical sense but also in everyday practical th(...)