The aim of this paper is to show the Idealtypus of the Islamic politics, i.e., the Caliphate (Khilāfah), which is the key concept to understand the contemporary so-called Islamic movements because the Caliphate is still the normative Islamic polity binding on Muslims as The Encyclopedia of Islamic Jurisprudence (al-Mawsū'ah al-Fiqhīyah) which is endorsed by the Ministry of the Religious Endowments and Islamic Affairs of Kuwait clarifies that the establishment of the Caliphate is obligatory by consensus of Islam...