The future of Marseille: a key theme in next year's French presidential election?

Eight months away from presidential elections... French President Emmanuel Macron began a three day visit to Marseille on Wednesday. He's unveiling a plan for tackling drug related gang violence and killings in France's poverty stricken second city, with crime set to be a key theme in next year's election. Macron's far right challenger Marine Le Pen is expected to run on a law and order platform.