The content originally appeared on: CNN (CNN)Gustavo Petro's victory in Colombia's presidential elections on Sunday opens a new page in the history of the country's relations with the US. The nation - which has never had a left-wing president - has been Washington's closest ally in the region for decades. But the election of leftist former guerrilla Petro to the country's highest office could radically change that relationship. A man uses a chainsaw to clear trees in order to plant […]
