Former French Economy Minister and candidate for the left-wing primary ahead of the 2017 presidential election Arnaud Montebourg gives a thumbs up as he addresses the summer conference of the French dissident Socialist MPs known as "Les Frondeurs" (The Insubordinates) on September 11, 2016 in La Rochelle, southwestern France. / AFP PHOTO / XAVIER LEOTYXAVIER LEOTY/AFP/Getty Images