PARIS, FRANCE - MAY 15: Jean-Marc Ayrault (C), Socialist Party parliamentary leader, attends the formal handover of investiture ceremony between France's president Francois Hollande and his predecessor Nicolas Sarkozy at Elysee Palace on May 15, 2012 in Paris, France. While Sarkozy has suggested that he will leave politics to return to a career in law, Francois Hollande will name his cabinet and travel to Germany for talks with German Chancellor Angela Merkel within hours of his inauguration.