The most recent presidential elections in the United States were very close ones, and raising many questions regarding the process, proved that the system needs to be revised. Given the fact that US citizens do not directly elect their presidential candidates from both major parties, this article considers the primaries’ schedule as an influential factor that shapes the final choice. The system as a whole receives much criticism every four years due to being archaic and not having direct representation of the US population overall. At the same time, the existing scholars’ analysis mainly focuses on various aspects of the US presidential system and usually does not consider the primaries’ calendar. Thus, the article examines whether the entire presidential nomination system can be called a cliff-hanger.