Kevin Ndongala, 22, a student, holds a blackboard with the word "social", the most important election issue for him, as he poses for Reuters in Chartres, France February 1, 2017. He said: "I hear many candidates saying we have too many public sector workers in France, but that's not true. We need them all." REUTERS/Stephane Mahe SEARCH "ELECTION CHARTRES" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES