SANTIAGO, Chile (AFP) — Chilean voters will decide their next president on Sunday in a run-off election whose outcome is far from certain after an unexpectedly strong surge for the left. Sebastian Pinera, a conservative billionaire former president who ruled from 2010-2014, is trying for a comeback to succeed center-left incumbent leader Michelle Bachelet, who is constitutionally excluded from standing again. But his plan could be upset by Alejandro Guillier, a senator and veteran TV presenter who […]