The OAS conducted a controversial audit of the 2019 Bolivian general election, which opposition supporters argued was fraudulent. The OAS report contended that the results were marred by "clear manipulation" and significant irregularities leading to the 2019 Bolivian political crisis. Bolivian president Evo Morales resigned soon after, having lost the confidence of the country's military in what he described as a coup. Some media outlets debated whether it should be referred to as a coup. Studies commissioned by the American left-leaning think tank CEPR, argued that the OAS report's statistical analysis was inaccurate and unreliable. The author of the OAS's vote return analysis stated that the CEPR's explanation of the results was implausible. Argentinian president-elect Alberto Fernández was critical of the OAS, stating “the audit the OAS held is significant in its flimsiness and has conclusions that are absolutely manipulated.” The OAS observed the subsequent 2020 Bolivian general election stating there was no evidence of fraud.