The subject of this bachelor thesis in political science has been to study how populistic rhetoric has evolved as a political phenomenon. The study has more specifically researched how presidential candidates have used populism in presidential debates. The bachelor thesis also studied if populistic rhetoric has changed over a time period between 1960 to 2016. To be able to study this, the essay has used critical discourse analysis to develop and understand how populism works. Ernesto Laclau’s On Populist Reason has also been used to create three models of understanding populism to develop the essays framework.  Through this the study has found that populistic rhetoric has come to be used more frequently in presidential debates. The study has also found that populistic rhetoric has changed form into a more aggressive style of rhetoric targeting the opponent’s character instead of the individual’s style of politics.