At present Mr Balladares, were he to stand again, would face the most severe challenge from a politician without any party affiliation, Panama City's mayor, Mayin Correa. She has by far the highest approval rating -- 93.9% -- of any politician in the country. Indeed her popularity has made her a target of the PRD political machine which is hoping that her reputation will be tarnished by a three-year-old battle with the city's treasurer, a member of the PRD, over the city's budget. The opposition, on the other hand, would look to her as an ally, strengthening the chances of their own presidential candidate(s) by running as the vice-presidential partner. There is some doubt whether she would succeed in an independent presidential bid.