Both candidates are seen as a challenge to the status quo of politics in Colombia; turnout said to be key as voters head to the polls to vote in runoffs
What s at stake as Colombians choose between Trump-like populist and leftist former guerrilla for president theconversation.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theconversation.com Daily Mail and Mail on Sunday newspapers.