Turkey's Erdogan to rejoin ruling party after referendum win

Turkey's President Recep Tayyip Erdogan arrived to a ceremony to rejoin the ruling Justice and Development Party, or AKP, in Ankara, Turkey, Tuesday, May 2, 2017. Erdogan is to rejoin the Islamic-rooted party he co-founded in a ceremony on Tuesday, following his narrow victory in a referendum that expands the powers of the president's office. (AP Photo/Burhan Ozbilici) (The Associated Press)

Turkey's President Recep Tayyip Erdogan, right, poses for photograph with Turkey's Prime Minister Binali Yildirim, left, during a ceremony to rejoin the ruling Justice and Development Party, or AKP, in Ankara, Turkey, Tuesday, May 2, 2017. Erdogan is to rejoin the Islamic-rooted party he co-founded in a ceremony on Tuesday, following his narrow victory in a referendum that expands the powers of the president's office. (AP Photo/Burhan Ozbilici) (The Associated Press)

Turkey's President Recep Tayyip Erdogan, enter signs a declaration of membership to rejoin the ruling Justice and Development Party, or AKP, in Ankara, Turkey, as Turkey's Prime Minister Binali Yildirim, right, looks on during a ceremony, Tuesday, May 2, 2017. Erdogan rejoined the Islamic-rooted party he co-founded in a ceremony on Tuesday, following his narrow victory in a referendum that expands the powers of the president's office. (Press Presidency Press Service via AP, Pool) (The Associated Press)

Turkish President Recep Tayyip Erdogan is to set rejoin the ruling party he co-founded following his narrow victory in a referendum that expands the powers of the president's office.

Most of the constitutional changes approved in the April 16 referendum will come into force in 2019. However, an article removing a requirement for the president to be neutral and cut ties with their party came into effect immediately, allowing Erdogan to return to the Justice and Development Party in a ceremony on Tuesday.

Erdogan is expected to be re-elected as its chairman at a congress on May 21.

Critics fear that the new presidential system approved in the referendum will lead to a one-man rule. Supporters say they will usher in stability and more efficient government.