THEORETICAL AND PRACTICAL ASPECTS OF THE CONCEPT OF AMERICAN FEDERALISM Kharatyan Gurgen Edurdovich, postgraduate student. <...> E-mail: Gurgen055@mail.ru Annotation: This article is about historical evolution of concept of the American federalism. <...> The article shows the main ideas and principles of this concept and their realization in the USA. <...> It reveals the historical and theoretical background inception of the idea of federalism and direct development of this idea in the USA. <...> The article contains basic scientific doctrines of American federalism and features of their implementation in practice. <...> The author demonstrates a connection between the theories of American federalism with the practical needs of the state at different times, according to the development needs of the USA in course of their evolution problems. <...> Concluded that there is a real possibility of limiting of any branch of power by creating a real alternative to it, certainly related to the life and interests of the citizens. <...> Статья посвящена проблемам теории и реализации концепции американского федерализма. <...>