Over the last few decades, an alliance of major parties has been leading the European Union. Politicians from the center parties had a majority in the major European institutions and were united in the common support for European integration. As anti-EU MEPs were increasingly elected to the European Parliament (EP) over the last fifteen years and due to the rising trend of declining support for mainstream parties, combined with the rise of populism at the radical ends of the political spectrum and the emergence of new political actors, danger has emerged that the existing balance were disturbed and the populist forces strengthened enough to disrupt decision making process. Encouraged by such a scenario, the motivation of pro-European forces to vote and to motivate other citizens to do the same has increased. The EP has decided to halt the trend of electoral abstinence and to mitigate the paradox between the increasing importance of Parliament's decisions in the life of citizens and the diminishing degree of electoral participation. The "This time I vote" campaign has been launched to raise awareness of the importance of European elections and civic participation. National parties, on the other hand, seek to motivate citizens to vote and to vote in their favor. This thesis analyzes the topics and communication of electoral actors, parties and institutions, and concludes whether they have succeeded in motivating the citizens to participate in the 2019 European elections. The thesis assumes that the participation of Croatian citizens will be slightly, but not significantly higher than that of previous elections, meaning that candidates will not mobilize significantly more voters. The other two hypotheses state that the campaign will be dominated by national themes rather than European ones, and that Eurosceptics may be more concerned with them, naturally only those they can use for their goals. The analysis and the results of the turnout showed that the hypotheses set were correct.