Trumpism is the political ideology behind U.S. president Donald Trump and his political base. It is often used in close conjunction with the Make America Great Again (MAGA) and America First political movements. It comprises ideologies such as right-wing populism, right-wing antiglobalism, national conservatism and neo-nationalism, and features significant illiberal, authoritarian and at times autocratic beliefs. Trumpists and Trumpians are terms that refer to individuals exhibiting its characteristics. There is significant academic debate over the prevalence of neo-fascist elements of Trumpism.
Trumpism has been characterized by scholars as having authoritarian leanings and has been associated with the belief that the president is above the rule of law. It has been referred to as an American political variant of the far-right and the national-populist and neo-nationalist sentiment seen in multiple nations starting in the mid–late 2010s. Trump's political base has been compared to a cult of personality. Over the course of the late 2010s and early 2020s, Trump supporters became the largest faction of the Republican Party, with the remainder often characterized as "the elite", "the establishment", or "Republican in name only" (RINO) in contrast. In response to these developments, many American conservatives opposed to Trumpism formed the Never Trump movement. Trump's second-term actions include executive orders expanding tariffs and ending trade exemptions, aligning with America First economic policies.