Trumpism is a political movement that follows the political ideologies associated with Donald Trump and his political base. It incorporates ideologies such as right-wing populism, national conservatism, neo-nationalism, and has also been described as being authoritarian and neo-fascist. Trumpist rhetoric heavily features anti-immigrant, xenophobic, nativist, and racist attacks against minority groups. Other identified aspects include conspiracist, isolationist, Christian nationalist, protectionist, anti-feminist, and anti-LGBT beliefs. Trumpists and Trumpians are terms that refer to individuals exhibiting its characteristics.

Right-wing populism, also called national populism and right-wing nationalism, is a political ideology that combines right-wing politics with populist rhetoric and themes. Its rhetoric employs anti-elitist sentiments, opposition to the Establishment, and speaking to or for the "common people". Recurring themes of right-wing populists include neo-nationalism, social conservatism, economic nationalism and fiscal conservatism. Frequently, they aim to defend a national culture, identity, and economy against perceived attacks by outsiders. Right-wing populism has remained the dominant political force in the Republican Party in the United States since the 2010s.