One year after her landslide election victory, Mexico's President Claudia Sheinbaum remains remarkably popular, with around 80 percent of Mexicans backing her policies. The left-wing politician has rolled out nationwide many of the measures she first introduced as mayor of Mexico City. But while the "Sheinbaum formula" appears to be working for now, major challenges lie ahead: from tackling insecurity to managing a delicate trade relationship with the United States of Donald Trump. FRANCE 24's Quentin Duval and Laurence Cuvillier report.