Representatives of the competing Paris and Los Angeles bids for the 2024 Olympic games made their formal presentations before the International Olympic Committee in Lausanne on Tuesday, when it appeared likely that the final decision in September will be to separately award Paris with the 2024 event and Los Angeles for that which follows in 2028.
French president insisted the tougher security measures imposed by France after recent terror attacks made Paris ideal venue for 2024 Games.
Paris Mayor Anne Hidalgo was already in Brazil and she and French president will canvas support for France's 2024 Olympic Games bid.
Bid which was launched at headquarters of the French Olympic Committee will see French capital up against Rome, Boston and Hamburg.
Staging the World's Fair was the preferred project over the likely Paris bid for the 2024 Olympic and Paralympic Games.
Anne Hidalgo tells president to hold his horses after François Hollande backed the idea during prime-time live TV interview.