This study aims primarily to examine the phenomenon of populism in American politics by focusing on the case of former President Donald Trump's populism (2017-2021). It also seeks to trace the historical roots of populism in America. Furthermore, the study aims to identify the key aspects of populism in Trump's rhetoric by researching and analyzing the main factors that contributed to the rise of populism with Trump's presidency in the United States. The study utilizes an analytical approach to observe the aspects of populism in Trump's discourse and analyze the factors that contributed to its rise. Content analysis technique is employed to analyze Trump's political speeches, in addition to using a historical approach to present the historical background of populist movements in the United States. The study concludes that there are several aspects of populism evident in Trump's political discourse. It also finds that there are a variety of factors that contributed to the escalation of populism with Trump's rise to power, including the ramifications of globalization, the impact of certain Republican Party rules, and notably, the Tea Party movement and right-wing populist groups.