This article sheds light on the factors that pave the way from voter abstention to voter turnout based on extensive research of tweets on national and local elections in Turkey. We find that the negative campaign strategy of the incumbent and the fact that the campaigning process has taken place on a very uneven playing field have triggered a set of emotions, primarily moral outrage and anger among the electorate, which have the power to change voting patterns in a significant way. The effect of negative campaigning on expressive voting was further enhanced by the pulling effect of the candidates and their public supporters and endorsements. We found that other, competing explanations of political outcomes are secondary to the mechanisms above.