BUENOS AIRES, Shawwal 25, 1436, August 10, 2015, SPA -- Ruling party candidate Daniel Scioli was ahead in Argentina's presidential primary on Sunday, with opposition leader Mauricio Macri running second, a local TV exit poll showed, Reuters reported. Under local law no detailed projections could be released until three hours after polls closed at 6 p.m. (2100 GMT). --SPA 00:30 LOCAL TIME 21:30 GMT www.spa.gov.sa/w