Abstract
The goal of this article is to critically evaluate, what role the impeachment plays in the U. S. Constitutional system and how it contributes to ensuring accountability of elected officials in the USA. To this end, the author will provide a short overview of the development of the institution of impeachment, discuss the current regulation of impeachment in the U. S. Constitution and the application of impeachment in practice, assessing its efficiency and role in the constitutional system. Finally, the conclusions will be reflected upon from the viewpoint of the Czech Constitutional system and its model of constitutional accountability.