Although extreme right-wing movements in the United States have been studied separately, where they are normally called "radical right", some writers consider them to be a part of the same phenomenon.
Meskipun gerakam sayap kanan ekstrem di Amerika Serikat telah dipelajari secara terpisah, di mana mereka biasanya disebut "kanan radikal", beberapa penulis memandang mereka sebagai sebuah bagian dalam fenomena sama.