Brigitte Trogneux (C) wife of French presidential election candidate for the En Marche ! movement Emmanuel Macron speaks with French journalist and Macron's advisor Michele "Mimi" Marchand (L) as they walk in the streets of Le Touquet, on April 22, 2017, on the eve of the first round of presidential election. France is on edge on the eve of its most unpredictable presidential election in decades, which will happen under heightened security after the jihadist killing of a policeman. / AFP PHOTO / Eric FEFERBERG