Abelardo de la Espriella has won the Colombian presidential runoff election with 49.65 percent of the vote, narrowly defeating leftist candidate Ivan Cepeda.The president-elect campaigned on a hardline platform of aggressive anti-guerrilla operations, economic dollarization, and a major reduction in state size.Ivan Cepeda has contested these preliminary results, announcing plans to challenge the vote counts at 33,000 polling stations as political tensions rise.