People's Democratic Party (Nigeria) to five years in prison. The party is a moderate advocate of state-autonomy and religious freedom for the Nigerian provinces. In the year 2000 the introduction of Islamic law in some states in Northern Nigeria triggered sectarian violence in Kaduna and Abia states. The PDP-led federal government refused to bow to pressure from the southern, predominantly Christian states to repeal the law, and instead opted for a compromise where Islamic law would only apply to Muslims. In the 2015 elections, the incumbent president and PDP presidential nominee, Goodluck Jonathan, was defeated by General Muhammadu Buhari of the All Progressives Congress
Head of state heads of state, sometimes in addition to another title, such as the Ottoman Sultan. Historically, some theocratic Islamic states known as "imamates" have been led by imams as head of state, such as in what is now Oman, Yemen, and Saudi Arabia. In the Islamic Republic of Iran, the Supreme Leader, at present Ali Khamenei serves as head of state. The Aga Khans, a unique dynasty of temporal/religious leadership, leading the Nizari offshoot of Shia Islam in Central and South Asia, once ranking among British India's princely states, continue to the present day. In Hinduism, certain dynasties adopted a title