Argentines choose post-Fernandez path in presidential primary

By Hugh Bronstein BUENOS AIRES (Reuters) - Argentina holds an open primary election on Sunday that will gauge the country's appetite for change after eight years of heavy state control of the economy and generous welfare spending under outgoing President Cristina Fernandez. The front-runner ahead of the Oct. 25 general election is Daniel Scioli, governor of Buenos Aires province and a member of Fernandez's party. Running second is Mauricio Macri, the business-friendly mayor of the capi