When Emmanuel Macron decided to run for French president, the consensus among politicians and pundits was that he stood no chance. A 39-year-old former banker who served under the deeply unpopular François Hollande, a man with no party behind him and claiming to be neither on the right or on the left could never sit in the Elysée Palace, it was said. But today, with less than two months to go before the first round, the maverick is firmly in the race and could even clinch France's top job.