Over the past years, Brazil has gone through movements of erosion of trust, and political scandals made room for new presidential candidates to arise, many fueled by a liberal agenda or pure and simple distaste for the legacy of the left-wing party that was in power. This led to a heated election in 2018, with 13 candidates facing off each other online and offline during the first round, fomenting passionate debates among a population of over 208 million with a vast online audience. In this context, a growing relevance of online campaigning appears, with the widespread use of social media by the candidates. By the means of a research methodology centered on discourse and quantitative analysis in politics, we discussed the converging and diverging patterns that emerged among election polls, comparing the online performance manifested on Twitter throughout the first round of presidential elections with the officially registered government plan. Our goal was to see if data visualization could help to explain the relevance of online campaigning in social media and how candidates reacted to the election polls and debates through posting on Twitter. The proposed research methodology and related tools can be used to perform the same type of analysis in future elections.
CCS CONCEPTS• Human-centered computing → Empirical studies in collaborative and social computing.