Actual vote margin between left-wing candidate Pedro Castillo and populist Keiko Fujimori is only 98,000 although it has been inching up. Left-wing Peruvian presidential candidate Pedro Castillo has taken a razor-thin but widening lead ahead of right-wing rival Keiko Fujimori on Tuesday, but the results of the highly polarised poll remain too close to call. Castillo’s Free Peru party called …