The US government tried to put pressure on Evo Morales and blackmail him into trying to make him change Bolivia’s economic policies, according to Norwegian investigative journalist Eirik Vold, who spent two years studying WikiLeaks documents related to the issue. According to classified documents, it all started back in 2006 right after Morales was elected as the President of Bolivia.
When Morales sought to nationalize Bolivia's petroleum resources, the US government threatened Morales in private telling him that it would cut the financing of Bolivia by influencing policies of the Inter-American Development Bank (IDB) and the World Bank. When Morales refused to give in, the US government began financing Bolivian opposition groups, which sought to overthrow the national government.
The Norwegian journalist also said that the US government knew about the plans of separatist movements in the Half Moon region. The separatists wanted to blow up pipelines and resort to other violent measures in an attempt to force the government of Morales to recognize their demands.