The impeachment process is both crucial and controversial as it may lead to the removal of the head of executive branch of the country. in Indonesia, this problem rooted in the vagueness of the 1945 Constitution on ruling the impeachment issue. This weakness has prompted political turbulence in the impeachment process of Abdurrahman Wahid in 2002. Meanwhile in the US , even though the Constitutuin provides provisions on impeachment, debates still arise since in term "misdemenors" did not have a precise meanign . Hence , politicians tend to interpret it in line with their own political interests. The debate on a precise meaning of the term "misdemeanors" happened in the process if Clinton's Impeachment in 1998. This research aims to explore and analyze the above constitutional problems based on the popular cases that occurred in both Indonesia and the US . President Abdurahman Wahid dan William Jefferson Clinton. The research also attempts to analyze the problems with comparative approach and find the similarities and difference between the two countries, particularly in the experience of both presidents. In conclucion, the research attempts to offef some important notes for better impeachment process in the future.