The objective of this paper is to show how analyzing open data may help verify politicians' arguments. In this paper we considered the polem-ical 2019 Bolivian general elections as case study. We used open access electoral data and statistical tools, to assess two political arguments that aimed at explaining changes in the vote count trend, namely the arrival of rural votes, and electoral fraud. This study highlights and discusses the importance of open data access and the involvement of science in assessing political arguments.