Argentina's electoral coalitions are in the final stretch of campaigning for Sunday's presidential primaries. Voters will chose between 13 candidates running on nine different coalition tickets. President Cristina Fernandez's Front for Victory candidate Daniel Scioli, governor of Buenos Aires province, is the front runner with 36% to 44% voter support. The right-wing coalition Cambiemos is in second place, with three candidates its voters can chose from. Laureano Ponce reports from Buenos Aires. teleSUR