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The alt-right, or alternative right, is a loosely-connected and somewhat ill-defined[1] grouping of white supremacists/white nationalists, neo-Nazis, neo-fascists, neo-Confederates, Holocaust deniers, and other far-right[2][3][4] fringe hate groups.[5][6]

Alt-right beliefs have been described as isolationist, protectionist, antisemitic and white supremacist,[7][8][9] frequently overlapping with neo-Nazism,[10][11][12][13] identitarianism,[14] nativism and Islamophobia,[15][16][17][18][19] antifeminism, misogyny and homophobia,[10][20][21][22][13] right-wing populism[23][24] and the neoreactionary movement.[7][25] The concept has further been associated with several groups such as American nationalists, paleoconservatives, anarcho-capitalists, national-anarchists,[26] paleolibertarians, Christian fundamentalists, neo-monarchists, men's rights advocates and the 2016 presidential campaign of Donald Trump.[15][24][25][27][28][14]

According to a Southern Poverty Law Center report published in February 2018, over 100 people have been killed and injured in 13 attacks by alt-right influenced perpetrators since 2014. Political scientists and leaders have argued it should be classified as a terrorist or extremist movement.

https://en.wikipedia.org/wiki/Alt-right